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

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Exponent Range:










MnStatusDetails
3511679Factored
FactorDigitsBitsDate
1160122536750492305912046412786.62021-10-12 22:51:10
ECM
DigitsB1Curves
255000038 / 280
Estimated T-Level: 20.7
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-07-05Brady Wildermuth7EE276CBF1F7E4750
Verified (Factored)1999-07-12Gary Samad7EE276CBF1F7E4753412041
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-10-20kutensBE64B504820CE8841324557453
P-1 factors
DateFactorB1B2
2021-10-121160122536750492305912046414000000150000000
History
DateUserTypeResult
2022-09-09JossNF-PM1
B1=1000000, B2=233218440
2022-04-24JossNF-PM1
B1=1000000, B2=145208700
2021-10-20carlos56CERT
PRP Certification
Proof certified good
2021-10-20kutensC-PRP
M3511679/116012253675049230591204641 : BE64B504820CE884
PRP proof power = 7
PRP: Verified
Proof certified good
2021-10-12mikrF-PM1
Factor: 116012253675049230591204641 / (P-1, B1=4000000, B2=150000000, E=12)
2021-08-27ArtyomPNF-PP1
Start=6/5, B1=50000, B2=2500000
2021-08-27ArtyomPNF-PP1
Start=2/7, B1=50000, B2=2500000
2021-03-19-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-17-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-17-Anonymous-NF
no factor from 2^69 to 2^70
2021-01-16axnNF
no factor from 2^68 to 2^69
2018-12-10TJAOINF
no factor from 2^67 to 2^68
2017-01-07Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-29YxinityNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-01-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-25VictordeHollanderNF
no factor from 2^63 to 2^64
2012-06-20GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-11-12markrNF-PM1
B1=235000, B2=5875000, E=12
2011-07-10markrNF
no factor from 2^61 to 2^62
2009-07-06Carsten KossendeyNF-PM1
B1=20000, B2=240000
2009-03-23Jayson KingNF
no factor from 2^60 to 2^61