Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
390437Factored
FactorDigitsBitsDate
995614351929.9old
206931610011134.32008-07-21 09:18:22
504038549531135.62008-07-21 09:18:22
3050148505191238.22008-07-21 09:18:22
56833790112731342.42008-07-21 09:18:22
355914981882080331755.02014-10-24 12:47:39
1286054042765975705343672476.82015-02-19 17:08:43
16310845484020282241223140412890.42021-09-13 20:13:36
79136530430475018711200159932892.72021-09-15 23:32:39
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000001453 / 4588
Estimated T-Level: 36.6
TF below 2^117 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-23Oliver KruseF0162EE9D0D3BD697013
Verified (Factored)2017-10-13Oliver KruseF0162EE9D0D3BD69711501513
Verified (Factored)2017-12-15ATHF0162EE9D0D3BD69735678713
Verified (Factored)2020-04-18Oliver KruseDBF78729FDE445E5730711653
Verified (Factored)2021-09-13SRJ2877DBF78729FDE445E5829467553
Verified2021-09-16mnd9DBF78729FDE445E5914207553
P-1 factors
DateFactorB1B2
2015-02-191286054042765975705343675000000
History
DateUserTypeResult
2022-09-29LordJuliusNF
no factor from 2^66 to 2^67
2022-09-29LordJuliusNF
no factor from 2^65 to 2^66
2022-09-29LordJuliusNF
no factor from 2^64 to 2^65
2022-09-29LordJuliusNF
no factor from 2^63 to 2^64
2022-09-29LordJuliusNF
no factor from 2^62 to 2^63
2022-09-29LordJuliusNF
no factor from 2^61 to 2^62
2022-09-29LordJuliusNF
no factor from 2^60 to 2^61
2022-09-29LordJuliusNF
no factor from 2^59 to 2^60
2021-12-22Seth_TrNF-PM1
B1=1000000000, B2=1018331744430
2021-12-19Seth_TrNF-PM1
B1=1000000000
2021-10-09nordiNF-PP1
Start=6/5, B1=200000000, B2=20000000000
2021-10-01nordiNF-PP1
Start=2/7, B1=200000000, B2=20000000000
2021-09-16mnd9C-PRP
M390437/995614351/20693161001/50403854953/305014850519/5683379011273/35591498188208033/128605404276597570534367/1631084548402028224122314041/7913653043047501871120015993 : DBF78729FDE445E5
PRP proof power = 5
PRP: Verified
PRP proof never uploaded
2021-09-15nordiF-ECM
Factor: 7913653043047501871120015993 / (ECM curve 53, B1=1000000, B2=168000000, Sigma=303209059895636)
2021-09-13Ben DeloCERT
PRP Certification
Proof certified good
2021-09-13SRJ2877C-PRP
M390437/995614351/20693161001/50403854953/305014850519/5683379011273/35591498188208033/128605404276597570534367/1631084548402028224122314041 : DBF78729FDE445E5
PRP proof power = 5
PRP: Verified (Factored)
Proof certified good
2021-09-13nordiF-ECM
Factor: 1631084548402028224122314041 / (ECM curve 67, B1=250000, B2=38500000, Sigma=6416848041790662)
2021-05-20Seth_TrNF-PM1
B1=1000000000, B2=241000000000
2021-03-10Seth_TrNF-PM1
B1=20000000, B2=2860000000
2021-03-02Seth_TrNF-PM1
B1=10000000, B2=1310000000
2020-04-18Oliver KruseC-PRP
M390437/995614351/20693161001/50403854953/305014850519/5683379011273/35591498188208033/128605404276597570534367 : DBF78729FDE445E5
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-12-15ATHC-PRP
M390437/995614351/20693161001/50403854953/305014850519/5683379011273/35591498188208033/128605404276597570534367 : F0162EE9D0D3BD69
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M390437/995614351/20693161001/305014850519/50403854953/5683379011273/35591498188208033/128605404276597570534367 : F0162EE9D0D3BD69
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M390437/known_factors : F0162EE9D0D3BD69
PRP without proof (not generated)
2015-02-19pdazzlF-PM1
Factor: 128605404276597570534367 / (P-1, B1=500000)
2014-10-24TJAOIF-ECM
Factor: 35591498188208033 / (ECM curve 5, B1=50000, B2=5000000)
2008-07-21J FeitsmaF
Factor: 5683379011273
2008-07-21J FeitsmaF
Factor: 50403854953
2008-07-21J FeitsmaF
Factor: 305014850519
2008-07-21J FeitsmaF
Factor: 20693161001