is 2 59219141 - 1
has 17826738 decimal digits
takes 131.557 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LA5B4D57A143F8BB0double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27464.605264.8649%54500096737503.35773.6323%67.962966.1411%1.2762%
PrimeNet2692.016062.3188%260000120000002.89795.6418%4.913964.4447%2.1259%
GPU7227332.301164.3836%400000140000003.67534.1462%35.976465.8603%1.4767%
Difference+1+32.3041+0.4813%+145000-4326250-0.3176-0.5139%+31.9865+0.2808%+0.2808%

Known prime factors:
No known factors for M59219141

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-11-24T21:06:00RonnyKarli5-15450009673750---3.358--3.632%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-02-09T00:00:00ANONYMOUSv4_computers21254--4.05248e-5--
2000-03-28T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-02-18T00:00:00ANONYMOUSv4_computers21257--0.000--
2001-11-17T00:00:00ANONYMOUSv4_computers21258--0.001--
2016-02-23T17:05:54Mark RoseManual testing258263--0.026--
2008-06-17T21:32:00monstguinness263264--0.033--
2009-03-19T18:13:00PrimeCruncherApollo4264265--0.063--
2009-03-21T13:02:00Wojciech Florekarmada2265266--0.126--
2009-03-23T10:18:00Wojciech Florekarmada2266267--0.252--
2009-03-27T02:31:00borgygCompLab15267268--0.505--
2009-06-14T19:40:00Kelly Lowderupstairs268269--1.010--
2011-07-23T14:53:00XyzzyManual testing269270--2.019--
2012-03-30T00:53:00Kyle AskineManual testing270271--4.038--
2012-07-11T21:53:00Kyle AskineManual testing271272--8.076--
2012-10-14T04:23:00Jerry HallettManual testing272273--16.15--
2019-01-02T13:53:48-Anonymous-Manual testing273274--32.30--


ECM factoring results:
No ECM results for M59219141


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-11-09T13:02:00curtiscwcm200--34lA5B4D57A143F8BB0131.6
2021-08-29T16:11:39mnisseA5B4D57A143F8BB0131.6


PRP results:
No PRP results for M59219141


P-1 factor-bounds graph:
B1 = 545000, B2 = 9673750 (P-1 stage 2)
B1 = 545000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-08-29T16:11:39+00:00