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
101113Factored
FactorDigitsBitsDate
777154519929.5old
650283992391135.92008-07-26 09:16:55
68612780264391342.62008-07-26 09:16:55
219168728862171444.32008-07-26 09:16:55
40519747313714196534202108135133511799339128.32014-06-22 09:37:49
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000271 / 1566
Estimated T-Level: 30.9 ⓘ
TF below 2^98 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse4258169A3F6677E25013
Verified2017-10-09Chang Chia-Tche4258169A3F6677E25013
Verified2017-10-13kkmrkkblmbrbk4258169A3F6677E251319013
Verified2020-04-17Oliver Kruse16E0B8CEFA3748CA51436553
Verified2022-04-15LordJulius16E0B8CEFA3748CA58765653
P-1 factors
DateFactorB1B2
2014-06-224051974731371419653420210813513351179931000000000
History
DateUserTypeResult
2022-11-06LordJuliusNF
no factor from 2^66 to 2^67
2022-11-06LordJuliusNF
no factor from 2^65 to 2^66
2022-11-04LordJuliusNF
no factor from 2^64 to 2^65
2022-11-04LordJuliusNF
no factor from 2^63 to 2^64
2022-11-04LordJuliusNF
no factor from 2^62 to 2^63
2022-04-15LordJuliusC-PRP
M101113/777154519/65028399239/6861278026439/21916872886217/405197473137141965342021081351335117993 : 16E0B8CEFA3748CA
PRP: Verified
PRP without proof (small exponent)
2022-04-13LordJuliusNF
no factor from 2^61 to 2^62
2022-04-13LordJuliusNF
no factor from 2^60 to 2^61
2022-04-13LordJuliusNF
no factor from 2^59 to 2^60
2022-04-13LordJuliusNF
no factor from 2^58 to 2^59
2022-04-13LordJuliusNF
no factor from 2^57 to 2^58
2021-12-19Seth_TrNF-PM1
B1=1000000000, B2=6736600110240
2020-04-17Oliver KruseC-PRP
M101113/777154519/65028399239/6861278026439/21916872886217/405197473137141965342021081351335117993 : 16E0B8CEFA3748CA
PRP: Verified
PRP without proof (small exponent)
2018-11-02J.R. AllenNF
no factor from 2^59 to 2^60
2018-11-02J.R. AllenNF
no factor from 2^58 to 2^59
2018-11-02J.R. AllenNF
no factor from 2^57 to 2^58
2018-10-25J.R. AllenNF
no factor from 2^52 to 2^57
2017-10-13kkmrkkblmbrbkC-PRP
M101113/777154519/65028399239/6861278026439/21916872886217/405197473137141965342021081351335117993 : 4258169A3F6677E2
PRP: Verified
PRP without proof (not generated)
2017-10-09Chang Chia-TcheC-PRP
M101113/known_factors : 4258169A3F6677E2
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M101113/777154519/21916872886217/65028399239/6861278026439/405197473137141965342021081351335117993 : 4258169A3F6677E2
PRP without proof (not generated)
2016-11-02kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2014-06-22BloodIceF-PM1
Factor: 405197473137141965342021081351335117993
2008-07-26J FeitsmaF
Factor: 6861278026439
2008-07-26J FeitsmaF
Factor: 65028399239
2008-07-26J FeitsmaF
Factor: 21916872886217