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
5563Factored
FactorDigitsBitsDate
534049619.0old
623057619.2old
1362925641698891547.0old
732718258411452797530871899427331102.5old
1631287338750427643986914929984322136138123.6old
3011482543434585602088230196033549081472141134.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000004764 / 16550
Estimated T-Level: 46.4
TF below 2^149 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse1FFB6056733551246013
Verified2017-10-02kkmrkkblmbrbk1FFB6056733551246013
Verified2017-12-07ATH1FFB6056733551246315313
Verified2020-04-17Oliver Kruse133146DBB933CFF36515453
Verified2024-02-03Wentao Huang133146DBB933CFF36118953
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M5563/534049/623057/136292564169889/7327182584114527975308718994273/16312873387504276439869149299843221361/30114825434345856020882301960335490814721 : 133146DBB933CFF3
PRP: Verified
PRP without proof (small exponent)
2023-07-13-Anonymous-NF-PM1
B1=45000000000, B2=181622797963056450
2022-01-24Ethan O'ConnorNF-PM1
B1=520000000, B2=513010076208630
2021-08-27Seth_TrNF-PM1
B1=400000000
2020-04-17Oliver KruseC-PRP
M5563/534049/623057/136292564169889/7327182584114527975308718994273/16312873387504276439869149299843221361/30114825434345856020882301960335490814721 : 133146DBB933CFF3
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M5563/534049/623057/136292564169889/7327182584114527975308718994273/16312873387504276439869149299843221361/30114825434345856020882301960335490814721 : 1FFB605673355124
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M5563/534049/623057/136292564169889/7327182584114527975308718994273/16312873387504276439869149299843221361/30114825434345856020882301960335490814721 : 1FFB605673355124
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M5563/known_factors : 1FFB605673355124
PRP without proof (not generated)