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
18546289Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
10018646544350140028232269.82019-01-07 09:34:33
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2003-11-28Ars Technica Team Prime Rib14D3B2537D631EE213129325
Verified (Factored)2007-01-01Binary Digits14D3B2537D631EE28297891
History
DateUserTypeResult
2019-01-07EthanDF-ECM
Factor: 1001864654435014002823 / (ECM curve 1, B1=50000, B2=5000000)
2018-02-02ramgeisNF
no factor from 2^68 to 2^69
2018-02-02ramgeisNF
no factor from 2^67 to 2^68
2016-03-25Mark RoseNF
no factor from 2^66 to 2^67