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
720677Factored
FactorDigitsBitsDate
161986347679586152787772373.8old
1690168238696802998538239212787.12023-01-01 23:39:35
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-27Oliver Kruse5470DA59A6A67BFA1013
Verified (Factored)2017-09-28Oliver Kruse5470DA59A6A67BFA1013
Verified (Factored)2017-11-09kkmrkkblmbrbk5470DA59A6A67BFA116507113
Verified (Factored)2020-04-20Oliver Kruse933D9AD32013B194111110753
Verified2023-01-02LordJulius933D9AD32013B19422348953
P-1 factors
DateFactorB1B2
2021-03-1616198634767958615278777484375345653
2023-01-0116901682386968029985382392116500003618231540
History
DateUserTypeResult
2023-01-02curtiscCERT
PRP Certification
Proof certified good
2023-01-02LordJuliusC-PRP
M720677/16198634767958615278777/169016823869680299853823921 : 933D9AD32013B194
PRP proof power = 6
PRP: Verified
Proof certified good
2023-01-01USAFSSF-PM1
Factor: 169016823869680299853823921 / (P-1, B1=1650000, B2=3618231540)
2021-03-16manrusF-PM1
Factor: 16198634767958615278777 / (P-1, B1=48437, B2=5345653, E=12)
2020-04-20Oliver KruseC-PRP
M720677/16198634767958615278777 : 933D9AD32013B194
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M720677/16198634767958615278777 : 5470DA59A6A67BFA
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M720677/16198634767958615278777 : 5470DA59A6A67BFA
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M720677/16198634767958615278777 : 5470DA59A6A67BFA
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12