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
4580027Factored
FactorDigitsBitsDate
4712333319960090363592168.72016-06-23 20:15:29
85168302947577150869292272.92016-06-23 20:15:29
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Sturle Sunde6AC1B32784D2E2F40
Verified (Factored)George Woltman6AC1B32784D2E2F467101
Bad1998-04-11Michael Wade719B8B5085F971650
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbkC23CE42D0A8E2CC62013
Verified2018-02-25Oliver KruseC23CE42D0A8E2CC62283076213
P-1 factors
DateFactorB1B2
2016-06-234013414317843229853077276963611829206651511198820361634303
2016-07-024712333319960090363591700004420000
History
DateUserTypeResult
2018-02-25Oliver KruseC-PRP
M4580027/471233331996009036359/8516830294757715086929 : C23CE42D0A8E2CC6
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M4580027/471233331996009036359/8516830294757715086929 : C23CE42D0A8E2CC6
PRP: Verified
PRP without proof (not generated)
2016-06-23Ismo LaitelaF-PM1
Factor: 4013414317843229853077276963611829206651511 / (P-1, B1=1988203, B2=61634303, E=12)
2016-02-23Mark RoseNF
no factor from 2^60 to 2^61
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-02snme2pm1NF
no factor from 2^65 to 2^66
2014-12-29lycornNF
no factor from 2^64 to 2^65
2014-12-29JayderNF
no factor from 2^63 to 2^64
2014-11-06JossNF-PM1
B1=74014
2012-01-17GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-08-22markrNF
no factor from 2^61 to 2^62