is 2 85629839 - 1
has 25777151 decimal digits
takes 275.799 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276178.722764.4737%675000124875006.15803.3830%184.880765.6755%1.2018%
PrimeNet2715.583161.9718%360000170000005.91535.3859%11.498364.0200%2.0482%
GPU7227589.360364.0000%550000190000007.26313.9477%96.623465.4212%1.4212%
Difference+1+89.3624+0.4737%+125000-6512500-1.1051-0.5648%+88.2573+0.2543%+0.2543%

Known prime factors (1 factor, 79.4 bits, 0.00009276% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
856298398166428248553108628599772479.4344768447742003292
22 × 3 × 31 × 331 × 3691 × 10492091
2018-01-243691104920911,656.32.68604.9862

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-01-24T05:43:11Jwb52zClay675000124875002479.4346.158551.612.323.383%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-11-27T13:20:00Architects Cubeda3_bu2264265--0.044--
2012-08-23T15:47:00america64Manual testing265266--0.087--
2013-02-23T12:08:00timc995dl580_g5266267--0.175--
2013-02-25T16:22:00Todd WalkeBigBlackIvy267268--0.349--
2013-03-01T21:36:00Sergey NosovManual testing268269--0.698--
2014-02-11T08:44:00Derp DerpsonCompute269270--1.396--
2014-03-03T05:14:00Andreas_TruetschManual testing270271--2.793--
2017-03-04T07:55:08Judge HaleManual testing271272--5.585--
2017-03-04T07:55:08Judge HaleManual testing272273--11.17--
2017-04-16T15:41:45ANONYMOUSManual testing273274--22.34--
2017-09-28T08:16:10Brian BeuningManual testing274275--44.68--
2017-10-01T15:11:29TheJudgerManual testing275276--89.36--


ECM factoring results:
No ECM results for M85629839


Lucas-Lehmer results:
No L-L results for M85629839


PRP results:
No PRP results for M85629839


P-1 factor-bounds graph:
B1 = 675000, B2 = 12487500 (P-1 stage 2)
B1 = 675000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-01-24T05:43:11+00:00