is 2 1717043 - 1
has 516882 decimal digits
takes 0.081 GHz-days to do one PRP test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L4AEA77EAF73EBBBCdouble-checked
PRP3EAA3E5FE03DC667

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual270139.164070.0000%17170431888747300.81306.7144%139.977072.0143%8.8564%
PrimeNet2570.011263.1579%80001400000.00102.7924%0.012264.1867%1.0288%
GPU722610.178965.5738%70001100000.00091.3432%0.179866.0362%0.4624%
Difference+9+138.9851+4.4262%+1710043+188764730+0.8122+5.3712%+139.7973+5.9781%+5.9781%

Known prime factors (1 factor, 84.9 bits, 0.00494461% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1717043361202340914859385702033432684.90110518150707782489597
7 × 151 × 9950946743408221
2021-06-0715199509467434082212,803,79036,996,99869,100,089

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2011-02-07T12:32:00Carsten Kossendeyleela900001507500---0.011--1.625%
2014-04-01T22:36:00Jocelyn LaroucheManual testing100000100000---0.007--0.574%
2014-05-03T14:50:00Jocelyn LaroucheManual testing150000150000---0.010--0.736%
2014-10-05T22:25:00Jocelyn LaroucheManual testing187381187381---0.013--0.836%
2015-01-09T22:25:00Jocelyn LaroucheManual testing281071281071---0.019--1.041%
2015-02-03T07:46:00Jocelyn LaroucheManual testing309178309178---0.021--1.093%
2015-02-16T20:56:00Jocelyn LaroucheManual testing374104374104---0.026--1.203%
2015-02-22T09:50:00Jocelyn LaroucheManual testing411514411514---0.028--1.260%
2015-03-06T12:09:00Jocelyn LaroucheManual testing452665452665---0.031--1.319%
2015-03-14T11:30:00Jocelyn LaroucheManual testing497931497931---0.034--1.380%
2015-04-08T16:59:00Jocelyn LaroucheManual testing602496602496---0.041--1.506%
2015-05-01T17:20:00Jocelyn LaroucheManual testing729019729019---0.050--1.639%
2015-05-07T16:18:00Jocelyn LaroucheManual testing801920801920---0.055--1.708%
2015-05-22T00:28:00Jocelyn LaroucheManual testing882112882112---0.060--1.778%
2015-05-26T18:16:00Jocelyn LaroucheManual testing970323970323---0.066--1.850%
2015-06-08T13:43:00Jocelyn LaroucheManual testing10673551067355---0.073--1.924%
2015-06-25T21:15:00Jocelyn LaroucheManual testing11740901174090---0.080--2.000%
2015-07-07T18:13:00Jocelyn LaroucheManual testing12914991291499---0.088--2.077%
2015-07-13T12:24:00Jocelyn LaroucheManual testing14206481420648---0.097--2.156%
2015-07-24T22:03:00Jocelyn LaroucheManual testing15627121562712---0.107--2.236%
2015-08-09T11:02:00mikrMSI3642200123456789---0.694--6.762%
2018-08-21T11:49:45Jocelyn Larouche low 4MManual testing171704317170430012---0.749--6.621%
2018-10-16T21:51:22Jocelyn Larouche low 4MManual testing171704318887473012---0.813--6.714%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-05-10T06:01:51Carlos PinhoHomeComputer10000005100000027--0.286
2021-06-07T01:56:35LaurVbutu500000036500000027P+12684.9011.830


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-11-21T00:00:00ANONYMOUSv4_computers?257--0.011--
2003-02-02T00:00:00ANONYMOUSv4_computers?258--0.022--
2016-02-23T16:28:48Mark RoseManual testing258260--0.067--
2010-04-22T12:41:00For Researcha3_bu2260261--0.089--
2016-02-23T16:28:48Mark RoseManual testing261262--0.179--
2010-10-27T20:37:00GrunwalderGIMPManual testing21263--0.930--
2016-02-23T16:28:48Mark RoseManual testing262263--0.572--
2015-05-02T07:36:00snme2pm1Manual testing263264--1.143--
2015-05-02T07:36:00snme2pm1Manual testing264265--2.176--
2015-09-01T08:49:00ramgeisManual testing265266--4.352--
2018-05-28T14:40:35TJAOIManual testing266267--8.704--
2019-06-17T12:15:06TJAOIManual testing267268--17.41--
2021-05-30T00:18:05LaurVManual testing268269--34.82--
2021-05-30T00:18:05LaurVManual testing269270--69.63--


ECM factoring results:
Total ECM effort:16.661 GHz-days
DigitsB1CurvesCompleteFacMiss
2011000280 / 1002.8005.996%
2550000280 / 2801.00036.722%

ECM Summary

B1B2factorcurvesGHz-days
50000500000028016.66


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-12-13T00:00:00ANONYMOUSv4_computers4AEA77EAF73EBBBC0.081
2015-07-19T18:02:00MadPooManual testing4AEA77EAF73EBBBC0.081


PRP results:
dateuseridcompidcofactorsres64PRP
2021-06-07T02:03:37ATHec2-PRPCFDC
36120234091485938570203343
3EAA3E5FE03DC667no


P-1 factor-bounds graph:
B1 = 1717043, B2 = 188874730 (stage 2)
B1 = 1717043, B2 = 171704300 (stage 2)
B1 = 3642200, B2 = 123456789 (stage 2)
B1 = 3642200 (stage 1)
B1 = 1717043 (stage 1)
B1 = 1562712 (stage 1)
B1 = 1420648 (stage 1)
B1 = 1291499 (stage 1)
B1 = 1174090 (stage 1)
B1 = 1067355 (stage 1)
B1 = 970323 (stage 1)
B1 = 882112 (stage 1)
B1 = 801920 (stage 1)
B1 = 729019 (stage 1)
B1 = 602496 (stage 1)
B1 = 497931 (stage 1)
B1 = 452665 (stage 1)
B1 = 411514 (stage 1)
B1 = 374104 (stage 1)
B1 = 309178 (stage 1)
B1 = 281071 (stage 1)
B1 = 187381 (stage 1)
B1 = 90000, B2 = 1507500 (stage 2)
B1 = 150000 (stage 1)
B1 = 100000 (stage 1)
B1 = 90000 (stage 1)
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TF factor-bounds graph:
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Last modified: 2021-06-07T02:03:37+00:00