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
13863433Factored
FactorDigitsBitsDate
12734930029806501265700898475065783862339126.62023-01-12 19:18:18
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2003-06-06Christian Hansen9B288A3C0286C1184349100
Verified (Factored)2005-09-22Kim Birchard9B288A3C0286C11811991388
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-01-18jeriffeeFDC7D5D40ADAF7BB11180249253
P-1 factors
DateFactorB1B2
2023-01-1212734930029806501265700898475065783862316000001620978450
History
DateUserTypeResult
2023-01-18Linear_PetraCERT
PRP Certification
Proof certified good
2023-01-18jeriffeeC-PRP
M13863433/127349300298065012657008984750657838623 : FDC7D5D40ADAF7BB
PRP proof power = 8
PRP: Verified
Proof certified good
2023-01-12nordiF-PM1
Factor: 127349300298065012657008984750657838623 / (P-1, B1=1600000, B2=1620978450)
2022-12-18nordiNF-PM1
B1=1600000
2021-10-29RichD0NF
no factor from 2^72 to 2^73
2021-09-06LaurVNF
no factor from 2^71 to 2^72
2021-08-23ChuckNF
no factor from 2^70 to 2^71
2021-08-08SRBaseNF
no factor from 2^69 to 2^70
2018-01-14ramgeisNF
no factor from 2^68 to 2^69
2017-12-23-Anonymous-NF
no factor from 2^67 to 2^68
2015-09-04NesowaNF
no factor from 2^66 to 2^67
2014-07-08NesowaNF
no factor from 2^65 to 2^66