Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2250679Factored
FactorDigitsBitsDate
22506791824.4old
94528519826.52008-07-14 20:22:22
1279408275230400619802232476.82022-07-03 14:09:06
ECM
DigitsB1Curves
255000089 / 280
Estimated T-Level: 21.6
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-10Oliver Kruse16B13CF6491DAD492013
Verified (Factored)2017-11-21kkmrkkblmbrbk16B13CF6491DAD4927328613
Verified2022-07-06_p95holder_85B93FA982952ABA354194553
Verified2022-07-09Oliver Kruse85B93FA982952ABA3193371853
History
DateUserTypeResult
2022-07-09George WoltmanCERT
PRP Certification
Proof certified good
2022-07-09Oliver KruseC-PRP
M2250679/22506791/94528519/127940827523040061980223 : 85B93FA982952ABA
PRP proof power = 7
PRP: Verified
Proof certified good
2022-07-06_p95holder_C-PRP
M2250679/22506791/94528519/127940827523040061980223 : 85B93FA982952ABA
PRP: Verified
PRP without proof (not generated)
2022-07-03_p95holder_F-ECM
Factor: 127940827523040061980223 / (ECM curve 7, B1=50000, B2=5000000)
2017-11-21kkmrkkblmbrbkC-PRP
M2250679/22506791/94528519 : 16B13CF6491DAD49
PRP: Verified
PRP without proof (not generated)
2017-10-10Oliver KruseC-PRP
M2250679/22506791/94528519 : 16B13CF6491DAD49
PRP: Verified
PRP without proof (not generated)
2016-04-05alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-14George WoltmanF-ECM
Factor: 94528519