Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
6302531Factored
FactorDigitsBitsDate
832820600350115336018967192686.12020-09-15 15:34:51
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Paul Victor NovareseCCDA026EC38DADA30
Verified (Factored)1998-12-21Ray StrubingerCCDA026EC38DADA30
Verified (Factored)2015-11-13MadPooCCDA026EC38DADA33610737
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-09-18ATH76016F7F6149F7891392471953
P-1 factors
DateFactorB1B2
2020-09-1583282060035011533601896719250000050000000
History
DateUserTypeResult
2020-09-18Ben DeloCERT
PRP Certification
Proof certified good
2020-09-18ATHC-PRP
M6302531/83282060035011533601896719 : 76016F7F6149F789
PRP proof power = 7
PRP: Verified
Proof certified good
2020-09-15Dylan DelgadoF-PM1
Factor: 83282060035011533601896719 / (P-1, B1=2500000, B2=50000000, E=12)
2020-08-12takahashiNF
no factor from 2^69 to 2^70
2020-04-19takahashiNF
no factor from 2^68 to 2^69
2019-11-05takahashiNF-PM1
B1=600000, B2=12000000, E=12
2018-06-04ramgeisNF
no factor from 2^67 to 2^68
2016-03-18Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-11-13MadPooC-LL
CCDA026EC38DADA3
2015-10-18snme2pm1NF
no factor from 2^65 to 2^66
2014-08-24lycornNF
no factor from 2^64 to 2^65
2014-08-17NesowaNF
no factor from 2^63 to 2^64
2013-04-11Squeeky_SquirrelNF-PM1
B1=115000, B2=2328750, E=6
2009-06-14Carsten KossendeyNF-PM1
B1=35000, B2=481250