Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
2304691Factored
FactorDigitsBitsDate
303509197016575707366732374.72017-08-23 15:25:36
ECM
DigitsB1Curves
255000084 / 280
Estimated T-Level: 21.5
TF below 2^66 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-02-19Alex Kok2F333001C4E0F3CB0
Verified (Factored)1999-06-15Tamas Kovacs2F333001C4E0F3CB304930
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-11Oliver Kruse2CE4EB53A9CB0D631013
Verified2017-11-22kkmrkkblmbrbk2CE4EB53A9CB0D631143702213
History
DateUserTypeResult
2021-06-10ViliamFNF-PM1
B1=5000000, B2=505000000
2018-02-18alpertronNF-PM1
B1=500000, B2=15000000, E=12
2017-11-22kkmrkkblmbrbkC-PRP
M2304691/30350919701657570736673 : 2CE4EB53A9CB0D63
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2304691/30350919701657570736673 : 2CE4EB53A9CB0D63
PRP: Verified
PRP without proof (not generated)
2017-08-23bamF-ECM
Factor: 30350919701657570736673 / (ECM curve 2, B1=50000, B2=5000000)
2017-05-30Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-10-21ramgeisNF
no factor from 2^65 to 2^66
2015-02-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-27VictordeHollanderNF
no factor from 2^63 to 2^64
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-12Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-02-15BudNF-PM1
B1=500000, B2=10000000, E=12
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61