is 2 102357631 - 1
has 30812718 decimal digits
takes 407.547 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
Actual276149.514964.4737%7380001992600010.29623.8418%159.811165.8386%1.3649%
PrimeNet2729.343162.5000%450000220000009.37655.3797%18.719564.5174%2.0174%
GPU72276149.514964.4737%6500002200000010.46823.8514%159.983165.8419%1.3682%
Difference---+88000-2074000-0.1720-0.0095%-0.1720-0.0034%-0.0034%

Known prime factors (1 factor, 88.1 bits, 0.00008603% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1023576313219652059248751893063213692788.0571572746471266393364
22 × 227 × 18307 × 73243 × 1291783
2021-01-277324312917831,206,8130.80610.8606

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-01-27T01:44:42Jwb52zClay738000199260002788.05710.30815.120.593.842%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-02T23:17:001997rj7Manual testing263264--0.019--
2010-08-18T03:38:00ANONYMOUSback113264265--0.037--
2012-04-22T09:25:00Andrew Bdell_xps_17265266--0.073--
2013-08-27T10:30:00RobishManual testing266267--0.146--
2013-12-18T01:21:00ITSCP_-_Server1267268--0.292--
2014-11-07T18:50:00DanielManual testing268269--0.584--
2014-11-19T08:22:00RMAC9.5DRP_Desktop269270--1.168--
2014-12-20T02:33:00SMoffatManual testing270271--2.336--
2018-12-13T18:48:51el groccoManual testing271272--4.672--
2020-03-28T21:08:46SRBaseManual testing272273--9.345--
2020-03-30T14:57:56SRBaseManual testing273274--18.69--
2020-11-04T09:31:08dcheukManual testing274275--37.38--
2020-11-09T10:23:07Hans LoeblichManual testing275276--74.76--


ECM factoring results:
No ECM results for M102357631


Lucas-Lehmer results:
No L-L results for M102357631


PRP results:
No PRP results for M102357631


P-1 factor-bounds graph:
B1 = 738000, B2 = 19926000 (P-1 stage 2)
B1 = 738000 (P-1 stage 1)
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108
TF factor-bounds graph:
276
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2100
Last modified: 2021-01-27T01:44:42+00:00