Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
7432129Factored
FactorDigitsBitsDate
12383475954880335318538621992890.02023-03-09 13:29:56
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)1999-06-26Eric Strand0196434407AD08B75922082
Verified (Factored)2002-02-17Michael Collier0196434407AD08B73488795
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-03-15Funky Waddle5519609CBF02E0DA1680028353
P-1 factors
DateFactorB1B2
2023-03-091238347595488033531853862199310000011007976980
History
DateUserTypeResult
2023-03-15ec14CERT
PRP Certification
Proof certified good
2023-03-15Funky WaddleC-PRP
M7432129/1238347595488033531853862199 : 5519609CBF02E0DA
PRP proof power = 8
PRP: Verified
Proof certified good
2023-03-09DRobinsonPEF-PM1
Factor: 1238347595488033531853862199 / (P-1, B1=3100000, B2=11007976980)
2021-09-28SRBaseNF
no factor from 2^71 to 2^72
2019-06-22NumberwangNF-PM1
B1=175000, B2=3325000, e=12
2016-06-12ramgeisNF
no factor from 2^70 to 2^71
2016-06-12ramgeisNF
no factor from 2^69 to 2^70
2016-06-12ramgeisNF
no factor from 2^68 to 2^69
2016-05-28america64NF
no factor from 2^67 to 2^68
2016-05-20america64NF
no factor from 2^66 to 2^67
2015-06-21VictordeHollanderNF
no factor from 2^65 to 2^66
2013-11-25David CampeauNF
no factor from 2^64 to 2^65
2013-10-24NesowaNF
no factor from 2^63 to 2^64
2012-07-03NesowaNF-PM1
B1=90000, B2=1665000, E=6