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
651731Factored
FactorDigitsBitsDate
142077359927.1old
14403255111030.42008-07-16 09:23:57
74883891911032.82008-07-16 09:23:57
6304532863131239.22008-07-16 09:23:57
17105649623070231650.62014-06-04 11:26:49
75705343363191911652.72014-08-22 11:39:41
279716022526352631754.62014-12-04 12:53:58
2481929682292603031857.82014-10-19 23:42:56
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000336 / 1566
Estimated T-Level: 31.1
TF below 2^98 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-28Oliver KruseDF21D3832522357B8013
Verified2017-10-13Oliver KruseDF21D3832522357B860565113
Verified2017-12-16ATHDF21D3832522357B823641913
Unverified (Reliable)2020-04-19Oliver Kruse461F813D5027B0__832226453
P-1 factors
DateFactorB1B2
2014-10-19248192968229260303100000030000000
History
DateUserTypeResult
2022-03-11LordJuliusNF
no factor from 2^66 to 2^67
2022-03-11LordJuliusNF
no factor from 2^65 to 2^66
2022-03-11LordJuliusNF
no factor from 2^64 to 2^65
2022-03-11LordJuliusNF
no factor from 2^63 to 2^64
2022-03-11LordJuliusNF
no factor from 2^62 to 2^63
2022-03-11LordJuliusNF
no factor from 2^61 to 2^62
2022-03-11LordJuliusNF
no factor from 2^60 to 2^61
2022-03-07LordJuliusNF
no factor from 2^59 to 2^60
2022-03-07LordJuliusNF
no factor from 2^57 to 2^58
2021-06-18Seth_TrNF-PM1
B1=1000000000, B2=241000000000
2021-03-08Seth_TrNF-PM1
B1=100000000, B2=19100000000
2021-02-27Seth_TrNF-PM1
B1=50000000, B2=5000000000, E=12
2020-04-19Oliver KruseC-PRP
M651731/142077359/1440325511/7488389191/630453286313/1710564962307023/7570534336319191/27971602252635263/248192968229260303 : 461F813D5027B0__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-16ATHC-PRP
M651731/142077359/1440325511/7488389191/630453286313/1710564962307023/7570534336319191/27971602252635263/248192968229260303 : DF21D3832522357B
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-20BloodERazorNF
no factor from 2^62 to 2^63
2017-10-20BloodERazorNF
no factor from 2^61 to 2^62
2017-10-20BloodERazorNF
no factor from 2^60 to 2^61
2017-10-20BloodERazorNF
no factor from 2^58 to 2^59
2017-10-20BloodERazorNF
no factor from 2^56 to 2^57
2017-10-13Oliver KruseC-PRP
M651731/142077359/1440325511/630453286313/7488389191/1710564962307023/7570534336319191/248192968229260303/27971602252635263 : DF21D3832522357B
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M651731/142077359/1440325511/630453286313/7488389191/1710564962307023/7570534336319191/248192968229260303/27971602252635263 : DF21D3832522357B
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M651731/142077359/1440325511/630453286313/7488389191/1710564962307023/7570534336319191/248192968229260303/27971602252635263 : DF21D3832522357B
PRP without proof (not generated)
2014-12-04TJAOIF
Factor: 27971602252635263 / TF: 54-55
2014-10-19alpertronF-PM1
Factor: 248192968229260303 / (P-1, B1=1000000, B2=30000000, E=12)
2014-08-22TJAOIF
Factor: 7570534336319191
2014-06-04TJAOIF
Factor: 1710564962307023
2008-07-16J FeitsmaF
Factor: 7488389191
2008-07-16J FeitsmaF
Factor: 630453286313
2008-07-16J FeitsmaF
Factor: 1440325511