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
3516727Factored
FactorDigitsBitsDate
14980202001911340.4old
495311555865449591755.52015-01-26 11:18:16
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-11-08Oliver KruseE5B5788BFF09A8832308437353
Verified2017-12-17kkmrkkblmbrbkE5B5788BFF09A883298132153
History
DateUserTypeResult
2022-09-09JossNF-PM1
B1=1000000, B2=235634490
2022-06-02LordJuliusNF
no factor from 2^66 to 2^67
2022-06-02LordJuliusNF
no factor from 2^65 to 2^66
2022-06-02LordJuliusNF
no factor from 2^64 to 2^65
2022-06-02LordJuliusNF
no factor from 2^63 to 2^64
2022-06-02LordJuliusNF
no factor from 2^62 to 2^63
2022-05-30Magallan3sF
Factor: 49531155586544959 / TF: 1-60
2022-05-30Magallan3sF
Factor: 1498020200191 / TF: 1-60
2022-02-27JossNF-PM1
B1=1000000, B2=147632100
2022-02-20JossNF
no factor from 2^67 to 2^68
2017-12-17kkmrkkblmbrbkC-PRP
M3516727/1498020200191/49531155586544959 : E5B5788BFF09A883
PRP: Verified
PRP without proof (not generated)
2017-11-08Oliver KruseC-PRP
M3516727/1498020200191/49531155586544959 : E5B5788BFF09A883
PRP: Verified
PRP without proof (not generated)
2015-01-26TJAOIF
Factor: 49531155586544959 / TF: 55-56