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
15049217Factored
FactorDigitsBitsDate
16092551024287430485612072580.42022-04-11 11:01:19
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-07-27Mac WangAB507378FC8164686018975
Verified (Factored)2006-02-15Marc Getty / Phil FizurAB507378FC8164682827248
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2023-06-11PerigB35C0A8EEA80033917369053
History
DateUserTypeResult
2023-06-11irowikiCERT
PRP Certification
Proof certified good
2023-06-11PerigC-PRP
M15049217/1609255102428743048561207 : B35C0A8EEA800339
PRP proof power = 8
PRP: Verified
Proof certified good
2022-04-11ATHF-PP1
Start=2/7, B1=1000000, Factor: 1609255102428743048561207
2022-03-24LuminescenceNF-PM1
B1=1500000, B2=4845580740
2021-10-15-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-02SRBaseNF
no factor from 2^70 to 2^71
2020-07-10YxinityNF
no factor from 2^69 to 2^70
2018-02-06riccardo ubertiNF-PM1
B1=430000, B2=9000000, E=12
2017-10-04ramgeisNF
no factor from 2^68 to 2^69
2016-01-26mikrNF
no factor from 2^67 to 2^68
2014-06-11NesowaNF
no factor from 2^66 to 2^67
2014-06-11NesowaNF
no factor from 2^65 to 2^66