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
111497Factored
FactorDigitsBitsDate
64041646871032.6old
71967723623237752071096696019506995936119.12016-12-18 16:41:13
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000246 / 1566
Estimated T-Level: 30.8 ⓘ
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-21Oliver Kruse04285FCBFB4C73462013
Verified2017-10-09Chang Chia-Tche04285FCBFB4C73462013
Verified2017-10-13kkmrkkblmbrbk04285FCBFB4C734623456113
Verified2020-04-17Oliver Kruse0F4A497AA03F2AA027918053
Verified2022-04-15LordJulius0F4A497AA03F2AA028259553
Verified2022-11-11LordJulius0F4A497AA03F2AA0210930953
P-1 factors
DateFactorB1B2
2016-12-187196772362323775207109669601950699591000000002000000000
History
DateUserTypeResult
2022-11-11Smok_bmv CERT
PRP Certification
Proof certified good
2022-11-11LordJuliusC-PRP
M111497/6404164687/719677236232377520710966960195069959 : 0F4A497AA03F2AA0
PRP proof power = 5
PRP: Verified
Proof certified good
2022-05-08LordJuliusNF
no factor from 2^62 to 2^63
2022-05-08LordJuliusNF
no factor from 2^61 to 2^62
2022-05-08LordJuliusNF
no factor from 2^60 to 2^61
2022-05-08LordJuliusNF
no factor from 2^59 to 2^60
2022-05-08LordJuliusNF
no factor from 2^58 to 2^59
2022-05-08LordJuliusNF
no factor from 2^57 to 2^58
2022-04-15LordJuliusC-PRP
M111497/6404164687/719677236232377520710966960195069959 : 0F4A497AA03F2AA0
PRP proof power = 5
PRP: Verified
PRP proof never uploaded
2020-04-17Oliver KruseC-PRP
M111497/6404164687/719677236232377520710966960195069959 : 0F4A497AA03F2AA0
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M111497/6404164687/719677236232377520710966960195069959 : 04285FCBFB4C7346
PRP: Verified
PRP without proof (not generated)
2017-10-09Chang Chia-TcheC-PRP
M111497/known_factors : 04285FCBFB4C7346
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M111497/6404164687/719677236232377520710966960195069959 : 04285FCBFB4C7346
PRP without proof (not generated)
2016-12-18kkmrkkblmbrbkF-PM1
Factor: 719677236232377520710966960195069959 / (P-1, B1=100000000, B2=2000000000, E=12)