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
3027527Factored
FactorDigitsBitsDate
1388575893507727610872166.92009-04-10 10:57:23
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)Timothy Luders238F7F7649B8D42D0
Verified (Factored)1999-06-26The Mac238F7F7649B8D42D1957679
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-27Oliver KruseB6501513C4D1550D1251103553
Verified2017-12-10kkmrkkblmbrbkB6501513C4D1550D1300893153
History
DateUserTypeResult
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 2^61 to 2^63
2022-01-22JossNF-PM1
B1=1000000, B2=119912100
2021-03-20JossNF
no factor from 2^67 to 2^68
2020-12-19JossNF-PM1
B1=302752, B2=3027527, E=6
2017-12-10kkmrkkblmbrbkC-PRP
M3027527/138857589350772761087 : B6501513C4D1550D
PRP: Verified
PRP without proof (not generated)
2017-10-27Oliver KruseC-PRP
M3027527/138857589350772761087 : B6501513C4D1550D
PRP: Verified
PRP without proof (not generated)
2009-04-10Sid & AndyF-ECM
Factor: 138857589350772761087
2009-01-30Jayson KingNF
no factor from 2^60 to 2^61