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
325697Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
461186953928.8old
550635203570811445.62008-07-21 09:16:50
ECM
DigitsB1Curves
2550000280 / 280
30250000485 / 640
Estimated T-Level: 28.8
TF below 2^91 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseB139EB9181108E202013
Verified2017-10-13Oliver KruseB139EB9181108E2024948713
Verified2017-12-12ATHB139EB9181108E20217959813
Verified2020-04-18Oliver Kruse4AA6F4D6F0A53C68216040153
Verified2024-09-05kkmrkkblmbrbk4AA6F4D6F0A53C68231506353
History
DateUserTypeResult
2024-09-13yuriy_5-1NF-PM1
B1=12000002, B2=1704299857260
2024-09-05ANONYMOUSCERT
PRP Certification
Proof certified good
2024-09-05kkmrkkblmbrbkC-PRP
M325697/461186953/55063520357081 : 4AA6F4D6F0A53C68
PRP proof power = 5
PRP: Verified
Proof certified good
2023-03-20Denial140NF-PM1
B1=1000000, B2=20563492950
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M325697/461186953/55063520357081 : 4AA6F4D6F0A53C68
PRP: Verified
PRP without proof (small exponent)
2017-12-12ATHC-PRP
M325697/461186953/55063520357081 : B139EB9181108E20
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M325697/461186953/55063520357081 : B139EB9181108E20
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M325697/461186953/55063520357081 : B139EB9181108E20
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M325697/461186953/55063520357081 : B139EB9181108E20
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 55063520357081