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
235661Factored
FactorDigitsBitsDate
72527270870926492624392272.62007-11-09 18:03:04
899947696078737535954332376.32015-08-07 10:55:29
10169043249440544137394892579.82015-08-07 10:55:29
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000248 / 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
Verified2017-09-22Oliver KruseB693A647B4B1F5EE3013
Verified2017-10-12kkmrkkblmbrbkB693A647B4B1F5EE311318813
Verified2020-04-17Oliver Kruse2F355AF11C1A29FD35984353
Verified2024-02-03Wentao Huang2F355AF11C1A29FD33164253
History
DateUserTypeResult
2024-02-03curtiscCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M235661/7252727087092649262439/89994769607873753595433/1016904324944054413739489 : 2F355AF11C1A29FD
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-31Oliver KruseNF-PM1
B1=30000000, B2=10120247026890
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-07-07Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M235661/7252727087092649262439/89994769607873753595433/1016904324944054413739489 : 2F355AF11C1A29FD
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M235661/7252727087092649262439/89994769607873753595433/1016904324944054413739489 : B693A647B4B1F5EE
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M235661/known_factors : B693A647B4B1F5EE
PRP without proof (not generated)
2015-08-07TJAOIF-ECM
Factor: 1016904324944054413739489 / (ECM curve 2, B1=50000, B2=5000000)
2015-08-07TJAOIF-ECM
Factor: 89994769607873753595433 / (ECM curve 38, B1=50000, B2=5000000)
2007-11-09Chad DavisF-ECM
Factor: 7252727087092649262439