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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MnStatusDetails
2437429Factored
FactorDigitsBitsDate
137915953298616310181077420392993.52020-07-19 02:14:16
ECM
DigitsB1Curves
255000061 / 280
Estimated T-Level: 21.1 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Tom Cage9A4313E45984FC7D0
BadSt. Patrick's College (John Cosgrave & Mark Daly & Olivia Bree et. al.)CC7DF741E9AF403A0
Verified (Factored)Andrea Dyballa9A4313E45984FC7D1691250
Verified (Factored)2000-01-25Rick Adams9A4313E45984FC7D2384452
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-07-23oodaira1CAEB300AA62A4711226926453
Verified2020-07-24marssystems1CAEB300AA62A4711192077053
History
DateUserTypeResult
2020-07-24marssystemsC-PRP
M2437429/13791595329861631018107742039 : 1CAEB300AA62A471
PRP: Verified
PRP without proof (not generated)
2020-07-23oodairaC-PRP
M2437429/13791595329861631018107742039 : 1CAEB300AA62A471
PRP: Verified
PRP without proof (not generated)
2020-07-19GANF-ECM
Factor: 13791595329861631018107742039 / (ECM curve 1, B1=50000, B2=5000000, Sigma=2629648927730404)
2019-05-27TJAOINF
no factor from 2^67 to 2^68
2017-07-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-12-21mikrNF-PM1
B1=3000000, B2=100000000, E=12
2015-10-25ramgeisNF
no factor from 2^65 to 2^66
2015-02-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-27VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-05Sebastian HornbostelNF
no factor from 2^61 to 2^62
2009-01-10Sturle SundeNF
no factor from 2^60 to 2^61