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
4800599Factored
FactorDigitsBitsDate
21986743431031.0old
1968610147488071547.52014-03-06 11:38:44
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-20Oliver Kruse46F30471459A93172261547153
Verified2018-01-06kkmrkkblmbrbk46F30471459A93172102624053
History
DateUserTypeResult
2022-09-27USAFSSNF-PM1
B1=260000, B2=167750730
2018-01-06kkmrkkblmbrbkC-PRP
M4800599/2198674343/196861014748807 : 46F30471459A9317
PRP: Verified
PRP without proof (not generated)
2017-11-20Oliver KruseC-PRP
M4800599/2198674343/196861014748807 : 46F30471459A9317
PRP: Verified
PRP without proof (not generated)
2014-03-06TJAOIF
Factor: 196861014748807