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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2523529Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
14333644731030.4old
22207055211031.02008-07-14 20:24:35
12425947261234062311960.12016-01-13 11:03:55
ECM
DigitsB1Curves
255000085 / 280
Estimated T-Level: 21.5
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-30alpertron5C193A83CE3FFC423013
Verified2017-11-08Oliver Kruse5C193A83CE3FFC423170039213
History
DateUserTypeResult
2022-08-21USAFSSNF-PM1
B1=240000, B2=199861200
2017-11-08Oliver KruseC-PRP
M2523529/1433364473/2220705521/1242594726123406231 : 5C193A83CE3FFC42
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M2523529/1242594726123406231/1433364473/2220705521 : 5C193A83CE3FFC42
PRP: Verified
PRP without proof (not generated)
2016-01-13TJAOIF
Factor: 1242594726123406231 / TF: 60-61
2008-07-14George WoltmanF-ECM
Factor: 2220705521