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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MnDetails
40054823
Composite: 1 known prime factor
Trial Factored to 274
TF target 272
Factored
FactorDigitsBitsDate
1203932917142215681395884872786.62025-10-07 01:19:18
P-1 factors
DateFactorsB1B2
2025-10-07120393291714221568139588487
24840001787663220
LL
StatusDateUserResidueShiftSoftware
Factored2008-09-24Choi Woo Jin149F6D62E3EEE42B27501105Windows,Prime95,v24 final,(aka Wc1)
Factored2017-02-05Dubslow149F6D62E3EEE42B28557638Linux 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2025-10-07James HeinrichF-PM1Factor: 120393291714221568139588487 / B1=2484000, B2=1787663220
2020-02-14-anonymous-NFno factor TF: 73-74
2019-09-30-anonymous-NFno factor TF: 72-73
2017-02-05DubslowC-LL149F6D62E3EEE42B
2014-12-31Mark RoseNFno factor TF: 71-72
2014-12-16ChuckNFno factor TF: 70-71
2014-12-16ChuckNFno factor TF: 69-70
2013-10-17Le ComteNFno factor TF: 68-69
2008-09-23Choi4KANGC-LL149F6D62E3EEE42B
2008-02-03-anonymous-NF-PM1B1=650000
2007-01-01-anonymous-NFno factor TF: 1-68
2006-12-18-anonymous-NFno factor TF: 1-68
2001-08-04-anonymous-NFno factor TF: 1-57