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
3089027Factored
FactorDigitsBitsDate
895817831929.7old
651135134425462731755.92015-02-19 12:03:56
50354434978056175853832272.12018-07-13 03:06:49
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-29Oliver Kruse964060521D7D9807261822753
Verified (Factored)2017-12-11ATH964060521D7D98072169586253
Verified2018-07-15Martin Russell964060521D7D98073175149953
History
DateUserTypeResult
2022-10-07JossNF-PM1
B1=1200000, B2=451528350
2022-09-04JossNF-PM1
B1=1200000, B2=236513550
2022-03-15LordJuliusNF
no factor from 2^66 to 2^67
2022-03-15LordJuliusNF
no factor from 2^65 to 2^66
2022-03-15LordJuliusNF
no factor from 2^64 to 2^65
2022-03-15LordJuliusNF
no factor from 2^63 to 2^64
2022-03-15LordJuliusNF
no factor from 2^62 to 2^63
2022-01-07JossNF-PM1
B1=1050000, B2=116447100
2021-06-20JossNF
no factor from 2^67 to 2^68
2018-07-15Martin RussellC-PRP
M3089027/895817831/65113513442546273/5035443497805617585383 : 964060521D7D9807
PRP: Verified
PRP without proof (not generated)
2018-07-13ATHF-ECM
Factor: 5035443497805617585383 / (ECM curve 2, B1=50000, B2=5000000)
2017-12-11ATHC-PRP
M3089027/895817831/65113513442546273 : 964060521D7D9807
PRP: Verified
PRP without proof (not generated)
2017-10-29Oliver KruseC-PRP
M3089027/895817831/65113513442546273 : 964060521D7D9807
PRP: Verified
PRP without proof (not generated)
2015-02-19TJAOIF
Factor: 65113513442546273 / TF: 55-56