M255 517 Mersenne number exponent details

	Trial Factoring	P-1 Factoring	Combined
Limit	GHz-days	Probability	B1	B2	GHz-days	Probability	GHz-days	Probability
Actual	2⁷⁰	935.1653	74.2857%	1000000000	201454308905850	108,761.1196	27.9464%	109,696.2849	81.4719%
Target	2⁴⁴	0.0000	59.0909%	4500	110000	0.0001	10.1945%	0.0001	63.2614%
Difference	+26	+935.1653	+15.1948%	+999995500	+201454308795850	+108,761.1195	+17.7520%	+109,696.2848	+18.2106%

	GHz-Days	worth	Factor probability
date	userid	compid	b1	b2	e	stage	factor	digits	bits*	spent	saved
2000-12-14	ANONYMOUS	v4_computers	95000	3800000		-		-	-	0.003	-	-	1.513%
2001-06-17	ANONYMOUS	v4_computers	100000	10000000		-		-	-	0.006	-	-	1.894%
2002-06-02	ANONYMOUS	v4_computers	32768	3276800		-		-	-	0.002	-	-	1.020%
2002-08-10	ANONYMOUS	v4_computers	65536	6553600		-		-	-	0.004	-	-	1.526%
2003-03-07	ANONYMOUS	v4_computers	131072	13107200		-		-	-	0.008	-	-	2.152%
2003-11-08	ANONYMOUS	v4_computers	262144	26214400		-		-	-	0.017	-	-	2.892%
2011-02-09	Jocelyn Larouche	Manual testing	2000000	2000000		-		-	-	0.020	-	-	1.898%
2012-02-26	Jocelyn Larouche	Manual testing	2436012	2436012		-		-	-	0.024	-	-	2.049%
2013-09-05	c10ck3r	Manual testing	10000000	200000000		-		-	-	0.202	-	-	6.539%
2021-12-05	Seth_Tr	Manual testing	120000000	120000000		-		-	-	1.189	-	-	6.340%
2021-12-05	Seth_Tr	Manual testing	120000000	57783635910		-		-	-	32.32	-	-	15.134%
2022-04-02	-Anonymous-	DL560G8	1000000000	201454308905850		-		-	-	108,761	-	-	27.946%

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	184	29	-	-	0.775
2023-02-07	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	-	-
2000-12-14	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	-	-
2016-02-23	Mark Rose	Manual testing	2⁵⁷	2⁵⁸		-	-	0.075	-	-
2009-01-01	Sturle Sunde	gobi.ifi	2⁵⁸	2⁵⁹		-	-	0.150	-	-
2009-01-25	Sturle Sunde	ginjtje.ifi	2⁵⁹	2⁶⁰		-	-	0.301	-	-
2013-09-18	lycorn	asteroid	2⁶⁰	2⁶¹		-	-	0.601	-	-
2015-08-25	NR	Manual testing	2⁶¹	2⁶²		-	-	1.202	-	-
2016-01-30	Gordon Spence	Manual testing	2⁶²	2⁶³		-	-	3.842	-	-
2016-01-30	Gordon Spence	Manual testing	2⁶³	2⁶⁴		-	-	7.684	-	-
2018-03-15	Gordon Spence	Manual testing	2⁶⁴	2⁶⁵		-	-	14.62	-	-
2020-01-01	Gordon Spence	Manual testing	2⁶⁵	2⁶⁶		-	-	29.25	-	-
2022-03-12	Anton Repko	Manual testing	2⁶⁶	2⁷⁰		-	-	877.4	-	-

ECM factoring results:

Total ECM effort:	1,055.343 GHz-days
Estimated T-Level:	34.220

Digits	B1	Complete	FacMiss
20	11000	203.976	0.000%
25	50000	44.232	0.000%
30	250000	6.854	0.106%
35	1000000	0.844	42.995%
40	3000000	0.086	91.759%
45	11000000	0.007	99.264%

ECM Summary

B1	B2	curves	GHz-days
50000	5000000	283	2.062
250000	25000000	584	21.27
1000000	2842011315	700	1,032

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	0.007
2007-08-17	Team_Bundu	bundu1	50000	5000000						1	0.007
2007-08-29	Chad Davis	Bayes	50000	5000000						1	0.007
2007-09-10	Chad Davis	Bayes	50000	5000000						1	0.007
2007-10-09	Chad Davis	Bayes	50000	5000000						1	0.007
2007-12-27	Steve Scott	Epox	50000	5000000						1	0.007
2007-12-27	Steve Scott	Abit	50000	5000000						1	0.007
2007-12-27	Steve Scott	Abit	50000	5000000						1	0.007
2007-12-27	Steve Scott	Abit	50000	5000000						1	0.007
2007-12-27	Steve Scott	Epox	50000	5000000						1	0.007
2007-12-27	Steve Scott	Asus-1	50000	5000000						1	0.007
2008-01-07	Steve Scott	Abit	50000	5000000						3	0.022
2008-08-10	Sturle Sunde	v17	50000	5000000						3	0.022
2008-09-16	Sturle Sunde	v21	50000	5000000						3	0.022
2008-10-14	Sturle Sunde	v1	50000	5000000						3	0.022
2008-11-18	Sturle Sunde	v23	50000	5000000						3	0.022
2008-12-05	Sturle Sunde	v21	50000	5000000						3	0.022
2009-01-12	Sturle Sunde	v23	50000	5000000						3	0.022
2009-02-11	Sturle Sunde	v21	50000	5000000						3	0.022
2009-03-02	Sturle Sunde	v21	50000	5000000						3	0.022
2009-03-18	James Heinrich	WHS	50000	5000000						3	0.022
2009-04-07	James Hintz	12_060209	50000	5000000						3	0.022
2009-04-19	Sturle Sunde	v23	50000	5000000						3	0.022
2009-04-23	Sturle Sunde	v21	50000	5000000						3	0.022
2009-04-24	Sturle Sunde	v23	50000	5000000						3	0.022
2009-04-26	Sturle Sunde	v23	50000	5000000						3	0.022
2009-04-29	Sturle Sunde	v21	50000	5000000						3	0.022
2009-05-04	Sturle Sunde	v21	50000	5000000						3	0.022
2009-05-08	Sturle Sunde	v21	50000	5000000						3	0.022
2009-05-11	Sturle Sunde	v21	50000	5000000						3	0.022
2009-05-15	Sturle Sunde	v23	50000	5000000						3	0.022
2009-05-19	Sturle Sunde	v23	50000	5000000						3	0.022
2009-05-23	Sturle Sunde	v21	50000	5000000						3	0.022
2009-05-27	Sturle Sunde	v21	50000	5000000						3	0.022
2009-05-31	Sturle Sunde	v21	50000	5000000						3	0.022
2009-06-04	Sturle Sunde	v23	50000	5000000						3	0.022
2009-06-08	Sturle Sunde	v23	50000	5000000						3	0.022
2009-06-12	Sturle Sunde	v21	50000	5000000						3	0.022
2009-06-12	Sturle Sunde	v21	50000	5000000						3	0.022
2009-06-26	Sturle Sunde	v21	50000	5000000						3	0.022
2009-07-07	ClknGo Software	cngws2	50000	5000000						3	0.022
2009-07-20	Sturle Sunde	v21	50000	5000000						3	0.022
2009-08-02	ClknGo Software	cngws2	50000	5000000						3	0.022
2009-08-15	Sturle Sunde	v21	50000	5000000						3	0.022
2009-08-25	Sturle Sunde	v21	50000	5000000						3	0.022
2009-08-28	Sturle Sunde	v21	50000	5000000						3	0.022
2009-09-03	Sturle Sunde	v21	50000	5000000						3	0.022
2009-09-03	Sturle Sunde	v21	50000	5000000						3	0.022
2009-09-08	linded	23G4692-Lib1	50000	5000000						3	0.022
2009-09-10	Sturle Sunde	v23	50000	5000000						3	0.022
2009-09-13	Sturle Sunde	v23	50000	5000000						3	0.022
2009-09-16	Sturle Sunde	v21	50000	5000000						3	0.022
2009-09-20	Sturle Sunde	v21	50000	5000000						3	0.022
2009-09-25	Lackó	Iroda_Andras	50000	5000000						3	0.022
2009-09-26	Sturle Sunde	v21	50000	5000000						3	0.022
2009-10-01	Sturle Sunde	v23	50000	5000000						3	0.022
2009-10-06	Sturle Sunde	v21	50000	5000000						3	0.022
2009-10-12	ANONYMOUS	v23	50000	5000000						3	0.022
2009-10-15	Sturle Sunde	v21	50000	5000000						3	0.022
2009-10-19	Sturle Sunde	v21	50000	5000000						3	0.022
2009-10-22	Sturle Sunde	v21	50000	5000000						3	0.022
2009-10-25	Sturle Sunde	v23	50000	5000000						3	0.022
2009-10-28	Sturle Sunde	v23	50000	5000000						3	0.022
2009-10-30	Sturle Sunde	v21	50000	5000000						3	0.022
2009-11-02	Sturle Sunde	v21	50000	5000000						3	0.022
2009-11-05	Sturle Sunde	v21	50000	5000000						3	0.022
2009-11-08	Sturle Sunde	v23	50000	5000000						3	0.022
2009-11-11	smoky	powermac	50000	5000000						3	0.022
2009-11-14	Sturle Sunde	v21	50000	5000000						3	0.022
2009-11-18	Sturle Sunde	v23	50000	5000000						3	0.022
2009-11-22	Sturle Sunde	v23	50000	5000000						3	0.022
2009-11-25	Sturle Sunde	v23	50000	5000000						3	0.022
2009-11-28	Sturle Sunde	v21	50000	5000000						3	0.022
2009-12-03	Sturle Sunde	v21	50000	5000000						3	0.022
2009-12-04	Sturle Sunde	v21	50000	5000000						3	0.022
2009-12-08	Sturle Sunde	v21	50000	5000000						3	0.022
2009-12-11	Sturle Sunde	v21	50000	5000000						3	0.022
2009-12-14	Sturle Sunde	v21	50000	5000000						3	0.022
2009-12-17	Sturle Sunde	v23	50000	5000000						3	0.022
2009-12-23	Sturle Sunde	v23	50000	5000000						3	0.022
2009-12-30	Sturle Sunde	v23	50000	5000000						3	0.022
2010-01-05	ANONYMOUS	v23	50000	5000000						3	0.022
2010-01-09	Sturle Sunde	v23	50000	5000000						3	0.022
2010-01-16	Sturle Sunde	v23	50000	5000000						3	0.022
2010-01-20	Sturle Sunde	v21	50000	5000000						3	0.022
2010-01-23	Sturle Sunde	v23	50000	5000000						3	0.022
2010-01-25	Sturle Sunde	v23	50000	5000000						3	0.022
2010-01-27	Sturle Sunde	v21	50000	5000000						3	0.022
2010-01-30	Sturle Sunde	v23	50000	5000000						3	0.022
2010-02-02	Sturle Sunde	v21	50000	5000000						3	0.022
2010-02-05	Sturle Sunde	v21	50000	5000000						3	0.022
2010-02-08	Sturle Sunde	v21	50000	5000000						3	0.022
2010-02-11	Sturle Sunde	v21	50000	5000000						3	0.022
2010-02-16	ANONYMOUS	v23	50000	5000000						3	0.022
2010-02-18	Sturle Sunde	v21	50000	5000000						3	0.022
2010-02-25	Sturle Sunde	v23	50000	5000000						3	0.022
2010-03-05	Sturle Sunde	v21	50000	5000000						3	0.022
2010-03-12	Dmitry B. Khachaturov	dix-dubna	50000	5000000						3	0.022
2010-04-14	James Hintz	NEW_OMFG	50000	5000000						11	0.080
2010-04-15	Sturle Sunde	v21	250000	25000000						3	0.109
2010-04-27	Sturle Sunde	v21	250000	25000000						3	0.109
2010-05-06	Sturle Sunde	v23	250000	25000000						3	0.109
2010-05-22	Sturle Sunde	v21	250000	25000000						3	0.109
2010-06-02	Sturle Sunde	v21	250000	25000000						3	0.109
2010-06-18	David Bessell	T413	250000	25000000						3	0.109
2010-07-11	Sturle Sunde	v21	250000	25000000						3	0.109
2010-08-23	ClknGo Software	cngws2	250000	25000000						3	0.109
2010-09-12	Sturle Sunde	v21	250000	25000000						3	0.109
2010-10-05	Sturle Sunde	v21	250000	25000000						3	0.109
2010-10-24	ANONYMOUS	v23	250000	25000000						3	0.109
2010-11-16	Sturle Sunde	v21	250000	25000000						3	0.109
2010-12-08	Sturle Sunde	v21	250000	25000000						3	0.109
2010-12-30	Sturle Sunde	v21	250000	25000000						3	0.109
2011-01-20	Sturle Sunde	v21	250000	25000000						3	0.109
2011-02-08	Sturle Sunde	v23	250000	25000000						3	0.109
2011-03-07	Sturle Sunde	v21	250000	25000000						3	0.109
2011-04-08	Sturle Sunde	v21	250000	25000000						3	0.109
2011-05-07	Sturle Sunde	v21	250000	25000000						3	0.109
2011-05-24	Sturle Sunde	v21	250000	25000000						3	0.109
2011-06-10	Sturle Sunde	v23	250000	25000000						3	0.109
2011-08-23	Sturle Sunde	v21	250000	25000000						3	0.109
2011-09-20	Sturle Sunde	001CC4F0E695	250000	25000000						3	0.109
2011-10-19	David Bessell	T413	250000	25000000						3	0.109
2011-11-18	David Bessell	T413	250000	25000000						3	0.109
2012-01-11	Sturle Sunde	v21	250000	25000000						3	0.109
2012-02-13	David Bessell	T413	250000	25000000						3	0.109
2012-03-26	David Bessell	T413	250000	25000000						3	0.109
2012-05-03	Sturle Sunde	v21	250000	25000000						3	0.109
2012-09-11	Sturle Sunde	v23	250000	25000000						3	0.109
2012-11-20	David Bessell	T413	250000	25000000						3	0.109
2013-10-09	Bruce	yoyodyne	250000	25000000						3	0.109
2014-07-01	Sturle Sunde	v23	250000	25000000						3	0.109
2015-07-27	XZT	Tablet	250000	25000000						3	0.109
2015-11-13	Bruce	Desk7	250000	25000000						3	0.109
2015-11-20	Bruce	Desk7	250000	25000000						3	0.109
2015-11-25	Bruce	Desk7	250000	25000000						3	0.109
2015-11-30	Bruce	Desk7	250000	25000000						3	0.109
2015-12-04	Bruce	Desk7	250000	25000000						3	0.109
2015-12-09	Bruce	Desk7	250000	25000000						3	0.109
2015-12-17	XZT	Tablet	250000	25000000						3	0.109
2015-12-27	Bruce	Desk8	250000	25000000						3	0.109
2016-01-05	Bruce	Desk8	250000	25000000						3	0.109
2016-01-15	Bruce	Desk8	250000	25000000						3	0.109
2016-01-25	Bruce	Desk8	250000	25000000						3	0.109
2016-02-06	pfummel	work4	250000	25000000						3	0.109
2016-03-10	lettp	Home	250000	25000000						3	0.109
2016-03-22	macpheeb	netbook	250000	25000000						3	0.109
2016-04-15	pfummel	work4	250000	25000000						3	0.109
2016-06-08	thelegendarymudkip	i5-4670k	250000	25000000						3	0.109
2016-07-15	WileECoyote	S107B	250000	25000000						3	0.109
2016-07-21	WileECoyote	S107B	250000	25000000						3	0.109
2016-07-26	WileECoyote	S107B	250000	25000000						3	0.109
2016-07-31	WileECoyote	S107B	250000	25000000						3	0.109
2016-08-05	WileECoyote	S107B	250000	25000000						3	0.109
2016-08-10	WileECoyote	S107B	250000	25000000						3	0.109
2016-08-21	WileECoyote	S107B	250000	25000000						3	0.109
2016-08-26	WileECoyote	S107B	250000	25000000						3	0.109
2016-09-01	WileECoyote	S107B	250000	25000000						3	0.109
2016-09-06	WileECoyote	S107B	250000	25000000						3	0.109
2016-09-11	WileECoyote	S107B	250000	25000000						3	0.109
2016-09-17	WileECoyote	S107B	250000	25000000						3	0.109
2016-09-23	WileECoyote	S107B	250000	25000000						3	0.109
2016-09-28	WileECoyote	S107B	250000	25000000						3	0.109
2016-10-03	WileECoyote	S107B	250000	25000000						3	0.109
2016-10-08	WileECoyote	S107B	250000	25000000						3	0.109
2016-10-14	WileECoyote	S107B	250000	25000000						3	0.109
2016-10-19	WileECoyote	S107B	250000	25000000						3	0.109
2016-10-25	WileECoyote	S107B	250000	25000000						3	0.109
2016-10-30	WileECoyote	S107B	250000	25000000						3	0.109
2016-11-04	WileECoyote	S107B	250000	25000000						3	0.109
2016-11-10	WileECoyote	S107B	250000	25000000						3	0.109
2016-11-15	WileECoyote	S107B	250000	25000000						3	0.109
2016-11-20	WileECoyote	S107B	250000	25000000						3	0.109
2016-11-25	WileECoyote	S107B	250000	25000000						3	0.109
2016-11-30	WileECoyote	S107B	250000	25000000						3	0.109
2016-12-05	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-02-07	WileECoyote	S107B	250000	25000000						3	0.109
2017-11-04	WileECoyote	ScoobyDoo	250000	25000000						3	0.109
2017-11-21	WileECoyote	ScoobyDoo	250000	25000000						3	0.109
2017-12-05	Anton Repko	Manual testing	250000	25000000						308	11.22
2022-08-19	Anton Repko	DeskMini	1000000	2842011315						700	1,032

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	34DB51A055470D68	0.002
2001-10-13	ANONYMOUS	v4_computers	34DB51A055470D68	0.002