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
19531957Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
9892997275228362855592169.72019-12-04 12:49:04
LL
StatusDateUserResidueShift
Bad2004-04-09Bob Willard68BBA57F6D55ABC48399179
Verified (Factored)2004-10-03David Waller4E8146C511B07D3B18536185
Verified (Factored)2007-07-04Phil Nelson4E8146C511B07D3B3693964
History
DateUserTypeResult
2019-12-04lycornF
Factor: 989299727522836285559 / TF: 69-70
2017-10-27ramgeisNF
no factor from 2^68 to 2^69
2014-05-12NesowaNF
no factor from 2^67 to 2^68
2014-05-12NesowaNF
no factor from 2^66 to 2^67