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
4507Factored
FactorDigitsBitsDate
21381209824.3old
1601788495573152955269027560717959164395313746881800153173.42021-04-18 15:59:43
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver KruseB373D0161DEAF0C11013
Verified (Factored)2017-10-12kkmrkkblmbrbkB373D0161DEAF0C11285313
Verified (Factored)2020-04-17Oliver Kruse8475381DEC6A58BA1128853
Verified2021-04-18ThomRuleyPRP_PRP_PRP_PRP_230213
Verified2021-04-18ATHPRP_PRP_PRP_PRP_2169013
History
DateUserTypeResult
2021-04-18ATHP-PRP
M4507/21381209/16017884955731529552690275607179591643953137468818001 is a probable prime.
2021-04-18ThomRuleyP-PRP
M4507/21381209/16017884955731529552690275607179591643953137468818001 is a probable prime.
2021-04-18Ryan PropperF-ECM
Factor: 16017884955731529552690275607179591643953137468818001 / (ECM curve 1, B1=260000000, B2=3142865025316, Sigma=8475856981473967266)
2020-04-17Oliver KruseC-PRP
M4507/21381209 : 8475381DEC6A58BA
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M4507/21381209 : B373D0161DEAF0C1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M4507/21381209 : B373D0161DEAF0C1
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M4507/21381209 : B373D0161DEAF0C1
PRP without proof (not generated)