Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
373963Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
6488086027031239.2old
7633193679160311549.42008-09-30 13:18:09
7447352145453024409385366916173099.22024-08-14 13:00:26
ECM
DigitsB1Curves
2550000280 / 280
30250000357 / 640
Estimated T-Level: 27.8
TF below 2^87 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-23Oliver Kruse0523F57F541D78EC2013
Verified (Factored)2017-09-24Oliver Kruse0523F57F541D78EC2013
Verified (Factored)2017-11-07kkmrkkblmbrbk0523F57F541D78EC215507713
Verified (Factored)2020-04-18Oliver Kruse0B479EE2EF1DA4FD2704453
Verified2024-08-14Oliver Kruse0B479EE2EF1DA4FD33540453
History
DateUserTypeResult
2024-08-14ChuckCERT
PRP Certification
Proof certified good
2024-08-14Oliver KruseC-PRP
M373963/648808602703/763319367916031/744735214545302440938536691617 : 0B479EE2EF1DA4FD
PRP proof power = 5
PRP: Verified
Proof certified good
2024-08-14Oliver KruseF-ECM
Factor: 744735214545302440938536691617 / (ECM curve 44, B1=435188, B2=821576910, Edwards Sigma=2818121564102369)
2024-06-12yuriy5-1NF-PM1
B1=10000000, B2=229551392070
2024-02-18Denial140NF-PM1
B1=1000000, B2=8403510570
2022-02-07Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M373963/648808602703/763319367916031 : 0B479EE2EF1DA4FD
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M373963/648808602703/763319367916031 : 0523F57F541D78EC
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-24Oliver KruseC-PRP
M373963/648808602703/763319367916031 : 0523F57F541D78EC
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-23Oliver KruseC-PRP
M373963/648808602703/763319367916031 : 0523F57F541D78EC
PRP: Verified (Factored)
PRP without proof (not generated)
2008-09-30markrF
Factor: 763319367916031