M254 941 Mersenne number exponent details

	Trial Factoring	P-1 Factoring	Combined
Limit	GHz-days	Probability	B1	B2	GHz-days	Probability	GHz-days	Probability
Actual	2⁷⁰	937.2782	74.2857%	1000000000	202896101968560	89,947.0260	27.9529%	90,884.3042	81.4736%
Target	2⁴⁴	0.0000	59.0909%	4500	110000	0.0001	10.1909%	0.0001	63.2599%
Difference	+26	+937.2782	+15.1948%	+999995500	+202896101858560	+89,947.0260	+17.7620%	+90,884.3041	+18.2137%

	GHz-Days	worth	Factor probability
date	userid	compid	b1	b2	e	stage	factor	digits	bits*	spent	saved
2000-12-07	ANONYMOUS	v4_computers	95000	3800000		-		-	-	0.002	-	-	1.512%
2001-06-17	ANONYMOUS	v4_computers	100000	10000000		-		-	-	0.005	-	-	1.893%
2002-06-02	ANONYMOUS	v4_computers	32768	3276800		-		-	-	0.002	-	-	1.020%
2002-08-10	ANONYMOUS	v4_computers	65536	6553600		-		-	-	0.003	-	-	1.525%
2003-03-07	ANONYMOUS	v4_computers	131072	13107200		-		-	-	0.007	-	-	2.152%
2003-11-08	ANONYMOUS	v4_computers	262144	26214400		-		-	-	0.014	-	-	2.891%
2011-02-07	Jocelyn Larouche	Manual testing	2000000	2000000		-		-	-	0.016	-	-	1.897%
2012-02-26	Jocelyn Larouche	Manual testing	2443151	2443151		-		-	-	0.020	-	-	2.051%
2013-10-14	David Campeau	i5-2500k	2560000	71680000		-		-	-	0.051	-	-	4.885%
2015-01-16	thelegendarymudkip	i5-4670k	10000000	250000000		-		-	-	0.188	-	-	6.781%
2016-05-13	mognuts	Manual testing	2851	71275		-		-	-	5.35269e-5	-	-	0.074%
2021-12-05	Seth_Tr	Manual testing	120000000	120000000		-		-	-	0.976	-	-	6.339%
2021-12-05	Seth_Tr	Manual testing	120000000	57783635910		-		-	-	26.54	-	-	15.132%
2022-03-09	-Anonymous-	T5810	1000000000	202896101968560		-		-	-	89,947	-	-	27.953%

date	userid	compid	b1	b2	start	factor	bits*	ghz-days
2023-01-27	masser	Manual testing	30000000	990000000	2	7	-	-	0.788
2023-02-05	masser	Manual testing	30000000	960000000	117	13	-	-	0.775
2023-02-11	masser	Manual testing	30000000	990000000	6	5	-	-	0.788

	Bits	Factor	GHz-Days	worth
date	userid	compid	from	to	factor	bits*	digits	spent	saved
1999-11-24	ANONYMOUS	v4_computers	2⁵²	2⁵³		-	-	0.002	-	-
2000-04-27	ANONYMOUS	v4_computers	2¹	2⁵⁴		-	-	0.009	-	-
2000-12-07	ANONYMOUS	v4_computers	2¹	2⁵⁵		-	-	0.019	-	-
2001-02-18	ANONYMOUS	v4_computers	2¹	2⁵⁶		-	-	0.038	-	-
2002-03-16	ANONYMOUS	v4_computers	2¹	2⁵⁷		-	-	0.075	-	-
2004-02-14	ANONYMOUS	v4_computers	2¹	2⁵⁸		-	-	0.151	-	-
2009-01-01	Sturle Sunde	gobi.ifi	2⁵⁸	2⁵⁹		-	-	0.151	-	-
2009-01-24	Sturle Sunde	ginjtje.ifi	2⁵⁹	2⁶⁰		-	-	0.301	-	-
2013-07-24	Sid & Andy	Buzz	2⁶⁰	2⁶¹		-	-	0.602	-	-
2015-08-25	NR	Manual testing	2⁶¹	2⁶²		-	-	1.205	-	-
2016-01-30	Gordon Spence	Manual testing	2⁶²	2⁶³		-	-	3.851	-	-
2016-01-30	Gordon Spence	Manual testing	2⁶³	2⁶⁴		-	-	7.701	-	-
2018-03-15	Gordon Spence	Manual testing	2⁶⁴	2⁶⁵		-	-	14.66	-	-
2020-01-01	Gordon Spence	Manual testing	2⁶⁵	2⁶⁶		-	-	29.31	-	-
2022-02-06	Anton Repko	Manual testing	2⁶⁶	2⁷⁰		-	-	879.3	-	-

ECM factoring results:

Total ECM effort:	189.071 GHz-days
Estimated T-Level:	34.957

Digits	B1	Complete	FacMiss
20	11000	300.618	0.000%
25	50000	56.569	0.000%
30	250000	8.292	0.025%
35	1000000	0.991	37.105%
40	3000000	0.098	90.634%
45	11000000	0.008	99.181%

ECM Summary

B1	B2	curves	GHz-days
50000	5000000	280	1.675
250000	25000000	585	17.50
1000000	100000000	1,420	169.9

ECM Details

										GHz-Days
date	userid	compid	b1	b2	factor	bits*	curve#	stage#	sigma	numcurves	spent
2007-08-09	George Woltman	D_P4Debug	50000	5000000						1	0.006
2007-08-17	Team_Bundu	bundu1	50000	5000000						1	0.006
2007-08-29	Chad Davis	Bayes	50000	5000000						1	0.006
2007-09-10	Chad Davis	Bayes	50000	5000000						1	0.006
2007-10-08	ANONYMOUS	minister	50000	5000000						1	0.006
2007-12-26	Steve Scott	Abit	50000	5000000						1	0.006
2007-12-27	Steve Scott	Abit	50000	5000000						1	0.006
2007-12-27	Steve Scott	Asus-1	50000	5000000						1	0.006
2007-12-27	Steve Scott	Abit	50000	5000000						1	0.006
2007-12-27	James Heinrich	WHS	50000	5000000						1	0.006
2007-12-27	James Heinrich	WHS	50000	5000000						1	0.006
2008-01-11	Team_Bundu	bundu3	50000	5000000						1	0.006
2008-03-10	Scott Kurowski	UW1	50000	5000000						3	0.018
2008-08-31	Sturle Sunde	v22	50000	5000000						3	0.018
2008-09-22	Sturle Sunde	v22	50000	5000000						3	0.018
2008-10-25	Sturle Sunde	v22	50000	5000000						3	0.018
2008-11-22	Sturle Sunde	v21	50000	5000000						3	0.018
2008-12-13	Sturle Sunde	v23	50000	5000000						3	0.018
2009-01-20	Sturle Sunde	v17	50000	5000000						3	0.018
2009-02-27	Carsten Kossendey	durandal	50000	5000000						1	0.006
2009-02-27	Sturle Sunde	v21	50000	5000000						3	0.018
2009-03-12	Sturle Sunde	v22	50000	5000000						3	0.018
2009-03-30	Sturle Sunde	v22	50000	5000000						3	0.018
2009-04-07	Carsten Kossendey	Manual testing	50000	5000000						1	0.006
2009-04-14	Sturle Sunde	v23	50000	5000000						3	0.018
2009-04-19	Sturle Sunde	v21	50000	5000000						3	0.018
2009-04-23	Sturle Sunde	v21	50000	5000000						3	0.018
2009-04-26	Sturle Sunde	v23	50000	5000000						3	0.018
2009-04-29	Sturle Sunde	v21	50000	5000000						3	0.018
2009-05-04	Sturle Sunde	v23	50000	5000000						3	0.018
2009-05-08	Sturle Sunde	v23	50000	5000000						3	0.018
2009-05-11	Sturle Sunde	v21	50000	5000000						3	0.018
2009-05-14	Sturle Sunde	v23	50000	5000000						3	0.018
2009-05-19	Sturle Sunde	v23	50000	5000000						3	0.018
2009-05-24	Sturle Sunde	v21	50000	5000000						3	0.018
2009-05-27	Sturle Sunde	v21	50000	5000000						3	0.018
2009-05-31	Sturle Sunde	v23	50000	5000000						3	0.018
2009-06-04	Sturle Sunde	v23	50000	5000000						3	0.018
2009-06-08	Sturle Sunde	v21	50000	5000000						3	0.018
2009-06-12	Sturle Sunde	v21	50000	5000000						3	0.018
2009-06-17	ClknGo Software	cngws2	50000	5000000						3	0.018
2009-06-25	Sturle Sunde	v23	50000	5000000						3	0.018
2009-07-06	ClknGo Software	cngws2	50000	5000000						3	0.018
2009-07-19	linded	23G4692-Lib1	50000	5000000						3	0.018
2009-08-09	primesecret	primesecret	50000	5000000						3	0.018
2009-08-14	Sturle Sunde	v21	50000	5000000						3	0.018
2009-08-24	Sturle Sunde	v23	50000	5000000						3	0.018
2009-08-27	ANONYMOUS	v23	50000	5000000						3	0.018
2009-08-31	Sturle Sunde	v21	50000	5000000						3	0.018
2009-09-06	Sturle Sunde	v21	50000	5000000						3	0.018
2009-09-07	Sturle Sunde	v23	50000	5000000						3	0.018
2009-09-10	Sturle Sunde	v23	50000	5000000						3	0.018
2009-09-13	Sturle Sunde	v23	50000	5000000						3	0.018
2009-09-16	Sturle Sunde	v23	50000	5000000						3	0.018
2009-09-20	Sturle Sunde	v23	50000	5000000						3	0.018
2009-09-23	Sturle Sunde	v21	50000	5000000						3	0.018
2009-09-26	Sturle Sunde	v21	50000	5000000						3	0.018
2009-09-30	ANONYMOUS	v23	50000	5000000						3	0.018
2009-10-05	Sturle Sunde	v23	50000	5000000						3	0.018
2009-10-11	Sturle Sunde	v23	50000	5000000						3	0.018
2009-10-15	Sturle Sunde	v21	50000	5000000						3	0.018
2009-10-18	Sturle Sunde	v23	50000	5000000						3	0.018
2009-10-22	ANONYMOUS	v23	50000	5000000						3	0.018
2009-10-25	Sturle Sunde	v23	50000	5000000						3	0.018
2009-10-27	ClknGo Software	cngws2	50000	5000000						3	0.018
2009-10-30	ANONYMOUS	v23	50000	5000000						3	0.018
2009-11-01	ANONYMOUS	v23	50000	5000000						3	0.018
2009-11-05	Sturle Sunde	v23	50000	5000000						3	0.018
2009-11-07	Sturle Sunde	v23	50000	5000000						3	0.018
2009-11-10	Sturle Sunde	v21	50000	5000000						3	0.018
2009-11-13	Sturle Sunde	v21	50000	5000000						3	0.018
2009-11-18	Sturle Sunde	v21	50000	5000000						3	0.018
2009-11-21	Sturle Sunde	v23	50000	5000000						3	0.018
2009-11-25	Sturle Sunde	v23	50000	5000000						3	0.018
2009-11-27	Sturle Sunde	v21	50000	5000000						3	0.018
2009-11-30	Sturle Sunde	v23	50000	5000000						3	0.018
2009-12-03	Sturle Sunde	v23	50000	5000000						3	0.018
2009-12-07	Sturle Sunde	v23	50000	5000000						3	0.018
2009-12-11	Sturle Sunde	v21	50000	5000000						3	0.018
2009-12-13	Sturle Sunde	v21	50000	5000000						3	0.018
2009-12-17	Sturle Sunde	v23	50000	5000000						3	0.018
2009-12-21	Sturle Sunde	v23	50000	5000000						3	0.018
2009-12-30	WileECoyote	boobuni	50000	5000000						3	0.018
2010-01-04	Sturle Sunde	v21	50000	5000000						3	0.018
2010-01-08	Sturle Sunde	v21	50000	5000000						3	0.018
2010-01-12	Sturle Sunde	v21	50000	5000000						3	0.018
2010-01-15	Sturle Sunde	v21	50000	5000000						3	0.018
2010-01-19	Sturle Sunde	v21	50000	5000000						3	0.018
2010-01-23	Sturle Sunde	v23	50000	5000000						3	0.018
2010-01-26	Sturle Sunde	v23	50000	5000000						3	0.018
2010-01-29	Sturle Sunde	v21	50000	5000000						3	0.018
2010-02-02	Sturle Sunde	v23	50000	5000000						3	0.018
2010-02-04	Sturle Sunde	v23	50000	5000000						3	0.018
2010-02-08	Sturle Sunde	v23	50000	5000000						3	0.018
2010-02-11	Sturle Sunde	v21	50000	5000000						3	0.018
2010-02-15	Sturle Sunde	v23	50000	5000000						3	0.018
2010-02-18	Sturle Sunde	v23	50000	5000000						3	0.018
2010-02-24	Sturle Sunde	v21	50000	5000000						3	0.018
2010-03-04	Sturle Sunde	v23	50000	5000000						3	0.018
2010-03-11	Sturle Sunde	v21	50000	5000000						3	0.018
2010-04-11	Rob_Dee	twopc	50000	5000000						1	0.006
2010-04-11	Rob_Dee	twopc	50000	5000000						1	0.006
2010-04-11	Rob_Dee	twopc	50000	5000000						1	0.006
2010-04-11	Rob_Dee	twopc	50000	5000000						1	0.006
2010-04-11	Rob_Dee	twopc	50000	5000000						1	0.006
2010-04-14	James Hintz	NEW_OMFG	50000	5000000						3	0.018
2010-04-14	Sturle Sunde	v23	250000	25000000						3	0.090
2010-04-19	Sturle Sunde	v21	250000	25000000						3	0.090
2010-05-05	BOM	C2Q-2667	250000	25000000						3	0.090
2010-05-18	Sturle Sunde	v21	250000	25000000						3	0.090
2010-05-30	David Bessell	T413	250000	25000000						3	0.090
2010-06-11	Sturle Sunde	v23	250000	25000000						3	0.090
2010-07-02	David Bessell	T413	250000	25000000						3	0.090
2010-08-12	Sturle Sunde	v21	250000	25000000						3	0.090
2010-09-09	BOM	C2Q-2667	250000	25000000						3	0.090
2010-09-28	Sturle Sunde	v23	250000	25000000						3	0.090
2010-11-09	ANONYMOUS	v23	250000	25000000						3	0.090
2010-12-03	Sturle Sunde	v23	250000	25000000						3	0.090
2010-12-19	Sturle Sunde	v21	250000	25000000						3	0.090
2010-12-23	David Bessell	T413	250000	25000000						3	0.090
2011-01-14	Sturle Sunde	v21	250000	25000000						3	0.090
2011-02-02	Sturle Sunde	v21	250000	25000000						3	0.090
2011-02-27	David Bessell	T413	250000	25000000						3	0.090
2011-03-29	Sturle Sunde	v21	250000	25000000						3	0.090
2011-05-01	David Bessell	T413	250000	25000000						3	0.090
2011-05-20	Sturle Sunde	001CC4F0E4FD	250000	25000000						3	0.090
2011-06-04	Sturle Sunde	001CC4F0E683	250000	25000000						3	0.090
2011-07-16	Sturle Sunde	v23	250000	25000000						3	0.090
2011-09-11	David Bessell	T413	250000	25000000						3	0.090
2011-10-06	Sturle Sunde	v21	250000	25000000						3	0.090
2011-11-07	David Bessell	T413	250000	25000000						3	0.090
2011-12-19	Bruce	dell-gx260	250000	25000000						3	0.090
2012-02-05	Sturle Sunde	v21	250000	25000000						3	0.090
2012-03-16	Dmitry B. Khachaturov	dix-dubna	250000	25000000						3	0.090
2012-04-23	Sturle Sunde	v23	250000	25000000						3	0.090
2012-06-08	Sturle Sunde	v21	250000	25000000						3	0.090
2012-10-31	David Bessell	T413	250000	25000000						3	0.090
2013-03-28	Sturle Sunde	v23	250000	25000000						3	0.090
2014-02-04	Gary Brian Baxter		250000	25000000						3	0.090
2015-05-18	endless_mike	EM_Core_i5_4250U	250000	25000000						3	0.090
2015-11-11	Bruce	Desk7	250000	25000000						3	0.090
2015-11-18	Bruce	Desk8	250000	25000000						3	0.090
2015-11-23	Bruce	Desk7	250000	25000000						3	0.090
2015-11-28	Bruce	Desk7	250000	25000000						3	0.090
2015-12-03	Bruce	Desk8	250000	25000000						3	0.090
2015-12-07	Bruce	Desk7	250000	25000000						3	0.090
2015-12-12	Bruce	Desk8	250000	25000000						3	0.090
2015-12-24	Bruce	Desk8	250000	25000000						3	0.090
2016-01-02	Bruce	Desk8	250000	25000000						3	0.090
2016-01-12	Bruce	Desk8	250000	25000000						3	0.090
2016-01-22	Bruce	Desk8	250000	25000000						3	0.090
2016-01-30	Bruce	Desk8	250000	25000000						3	0.090
2016-03-08	ANONYMOUS	q34regopsitorgs	250000	25000000						3	0.090
2016-03-15	lettp	Home	250000	25000000						3	0.090
2016-04-09	Lackó	Iroda_Laci_uj	250000	25000000						3	0.090
2016-06-08	thelegendarymudkip	i5-4670k	250000	25000000						3	0.090
2016-07-10	WileECoyote	S107B	250000	25000000						3	0.090
2016-07-19	WileECoyote	S107B	250000	25000000						3	0.090
2016-07-24	WileECoyote	S107B	250000	25000000						3	0.090
2016-07-29	WileECoyote	S107B	250000	25000000						3	0.090
2016-08-03	WileECoyote	S107B	250000	25000000						3	0.090
2016-08-08	WileECoyote	S107B	250000	25000000						3	0.090
2016-08-19	WileECoyote	S107B	250000	25000000						3	0.090
2016-08-25	WileECoyote	S107B	250000	25000000						3	0.090
2016-08-30	WileECoyote	S107B	250000	25000000						3	0.090
2016-09-04	WileECoyote	S107B	250000	25000000						3	0.090
2016-09-09	WileECoyote	S107B	250000	25000000						3	0.090
2016-09-16	WileECoyote	S107B	250000	25000000						3	0.090
2016-09-21	WileECoyote	S107B	250000	25000000						3	0.090
2016-09-26	WileECoyote	S107B	250000	25000000						3	0.090
2016-10-01	WileECoyote	S107B	250000	25000000						3	0.090
2016-10-06	WileECoyote	S107B	250000	25000000						3	0.090
2016-10-11	WileECoyote	S107B	250000	25000000						3	0.090
2016-10-17	WileECoyote	S107B	250000	25000000						3	0.090
2016-10-23	WileECoyote	S107B	250000	25000000						3	0.090
2016-10-28	WileECoyote	S107B	250000	25000000						3	0.090
2016-11-02	WileECoyote	S107B	250000	25000000						3	0.090
2016-11-07	WileECoyote	S107B	250000	25000000						3	0.090
2016-11-13	WileECoyote	S107B	250000	25000000						3	0.090
2016-11-18	WileECoyote	S107B	250000	25000000						3	0.090
2016-11-23	WileECoyote	S107B	250000	25000000						3	0.090
2016-11-28	WileECoyote	S107B	250000	25000000						3	0.090
2016-12-03	WileECoyote	S107B	250000	25000000						3	0.090
2016-12-08	WileECoyote	S107B	250000	25000000						3	0.090
2016-12-12	WileECoyote	S107B	250000	25000000						3	0.090
2016-12-18	WileECoyote	S107B	250000	25000000						3	0.090
2016-12-23	WileECoyote	S107B	250000	25000000						3	0.090
2016-12-27	WileECoyote	S107B	250000	25000000						3	0.090
2016-12-30	WileECoyote	S107B	250000	25000000						3	0.090
2017-01-03	WileECoyote	S107B	250000	25000000						3	0.090
2017-01-07	WileECoyote	S107B	250000	25000000						3	0.090
2017-01-13	WileECoyote	S107B	250000	25000000						3	0.090
2017-01-16	WileECoyote	S107B	250000	25000000						3	0.090
2017-01-21	WileECoyote	S107B	250000	25000000						3	0.090
2017-01-25	WileECoyote	S107B	250000	25000000						3	0.090
2017-01-30	WileECoyote	S107B	250000	25000000						3	0.090
2017-02-10	WileECoyote	S107B	250000	25000000						3	0.090
2017-09-17	Anton Repko	Manual testing	250000	25000000						312	9.332
2020-01-12	nordi	nordiputer	1000000	100000000						100	11.96
2022-11-22	Anton Repko	DeskMini	1000000	100000000						1320	157.9

0M	<	10¹⁰	All tracked exponents
0M	<	2³²	GPU TF range
0M	<	1000M	PrimeNet range
0M	<	193M	low-PrimeNet, low-res
0M	<	385M	low-PrimeNet, high-res
50M	<	146M	PrimeNet wavefront

date	userid	compid	res64	spent (GHz-days)
1997-01-01	Brian J. Beesley	samson	B91A6F9F569E303B	0.001
2001-10-13	ANONYMOUS	v4_computers	B91A6F9F569E303B	0.001