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
803273Factored
FactorDigitsBitsDate
449832881928.7old
469793343864359111755.42015-01-22 13:07:26
134876642230743963292132453295533944137120.02021-07-02 19:41:16
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-28Oliver KruseDBBCCBD3543254B02013
Verified (Factored)2017-10-13Oliver KruseDBBCCBD3543254B0258359213
Verified (Factored)2017-12-18ATHDBBCCBD3543254B0234381613
Verified (Factored)2020-04-21Oliver KruseA7438CAA181F3157273283253
Verified2021-07-04kutensA7438CAA181F3157320782953
P-1 factors
DateFactorB1B2
2021-07-0213487664223074396329213245329553394412000000162000000
History
DateUserTypeResult
2021-07-04Ben DeloCERT
PRP Certification
Proof certified good
2021-07-04kutensC-PRP
M803273/449832881/46979334386435911/1348766422307439632921324532955339441 : A7438CAA181F3157
PRP proof power = 6
PRP: Verified
Proof certified good
2021-07-02Dylan DelgadoF-PM1
Factor: 1348766422307439632921324532955339441 / (P-1, B1=2000000, B2=162000000)
2020-04-21Oliver KruseC-PRP
M803273/449832881/46979334386435911 : A7438CAA181F3157
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-12-18ATHC-PRP
M803273/449832881/46979334386435911 : DBBCCBD3543254B0
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M803273/449832881/46979334386435911 : DBBCCBD3543254B0
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M803273/449832881/46979334386435911 : DBBCCBD3543254B0
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12
2015-01-22TJAOIF
Factor: 46979334386435911 / TF: 55-56