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
566707Factored
FactorDigitsBitsDate
762972100559253926037613692686.02008-01-21 17:00:37
ECM
DigitsB1Curves
2550000280 / 280
30250000210 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver KruseFFF909DA3B3B1FE01013
Verified2017-09-28Oliver KruseFFF909DA3B3B1FE01013
Verified2017-11-07kkmrkkblmbrbkFFF909DA3B3B1FE0111509613
Unverified (Reliable)2020-04-19Oliver Kruse163E6E5E3041BC__135304153
History
DateUserTypeResult
2022-12-11USAFSSNF-PM1
B1=1750000, B2=5527862340
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-19Oliver KruseC-PRP
M566707/76297210055925392603761369 : 163E6E5E3041BC__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M566707/76297210055925392603761369 : FFF909DA3B3B1FE0
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M566707/76297210055925392603761369 : FFF909DA3B3B1FE0
PRP: Unverified (Reliable)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M566707/76297210055925392603761369 : FFF909DA3B3B1FE0
PRP: Unverified (Reliable)
PRP without proof (not generated)
2008-01-21Team_BunduF-ECM
Factor: 76297210055925392603761369