is 2 101865877 - 1
has 30664685 decimal digits
takes 405.589 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276150.236764.4737%7340002207700010.95103.9132%161.187768.3869%5.8869%
PrimeNet2729.388262.5000%400000220000009.10355.2975%18.491767.7975%5.2975%
GPU72276150.236764.4737%6500002200000010.46823.8491%160.704968.3228%3.8491%
Difference---+84000+77000+0.4828+0.0642%+0.4828+0.0642%+0.0642%

Known prime factors (1 factor, 77.8 bits, 0.00007639% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1018658772660255225685232833832012477.8161305763668870800
24 × 52 × 34673 × 94148449
34673941484492020-12-31574.9429.80355.311

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-12-31T13:44:38Krieselostrich73400022077000122477.81610.95811.221.903.913%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-03-02T04:36:001997rj7compa263264--0.019--
2010-08-15T19:39:00RichardFX5000_1264265--0.037--
2012-04-18T20:18:00Donna NobleOpt6128x4x4265266--0.073--
2013-08-27T01:09:00SMoffatManual testing266267--0.147--
2013-08-27T23:34:00RobishManual testing267268--0.293--
2013-08-28T22:04:00RobishManual testing268269--0.587--
2013-08-30T09:14:00RobishManual testing269270--1.174--
2013-09-01T22:59:00RobishManual testing270271--2.347--
2014-12-22T07:03:00ANONYMOUS271272--4.695--
2020-01-31T02:15:07ixfd64Manual testing272274--28.17--
2020-10-10T18:26:10TheJudgerManual testing274275--37.56--
2020-10-10T18:26:10TheJudgerManual testing275276--75.12--


ECM factoring results:
Exponent "101865877" not found


Lucas-Lehmer results:
Exponent "101865877" not found


PRP results:
Exponent "101865877" not found


P-1 factor-bounds graph:
B1 = 734000, B2 = 22077000 (stage 2)
B1 = 734000 (stage 1)
103
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105
106
103
104
105
106
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108
TF factor-bounds graph:
276
275
274
272
271
270
269
268
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266
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2100
Last modified: 2020-12-31T13:44:38+00:00