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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
3690607Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1256577871371236.9old
10003462949818789691959.82015-12-15 13:20:23
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
Verified2017-09-20kkmrkkblmbrbkEFA663FCA8F0D12D2013
Verified2017-11-29Oliver KruseEFA663FCA8F0D12D2192369913
History
DateUserTypeResult
2022-06-15LordJuliusNF
no factor from 2^66 to 2^67
2022-06-15LordJuliusNF
no factor from 2^65 to 2^66
2022-06-15LordJuliusNF
no factor from 2^64 to 2^65
2022-06-15LordJuliusNF
no factor from 2^63 to 2^64
2022-06-15LordJuliusNF
no factor from 2^60 to 2^63
2022-05-20JossNF-PM1
B1=100000, B2=130364850
2022-03-27JossNF
no factor from 2^67 to 2^68
2022-03-01JossNF-PM1
B1=100000
2017-11-29Oliver KruseC-PRP
M3690607/125657787137/1000346294981878969 : EFA663FCA8F0D12D
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M3690607/1000346294981878969/125657787137 : EFA663FCA8F0D12D
PRP: Verified
PRP without proof (not generated)
2015-12-15TJAOIF
Factor: 1000346294981878969 / TF: 59-60