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
5049689Factored
FactorDigitsBitsDate
337113814246888140110172374.82021-10-30 20:19:28
ECM
DigitsB1Curves
255000044 / 280
Estimated T-Level: 20.8 ⓘ
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David A McGough2AB7C784CB9144B20
Verified (Factored)2000-08-10Shawn McHorse2AB7C784CB9144B24381602
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-10-31ATH62AA7940B27AD55C1253984653
History
DateUserTypeResult
2021-10-31Ben DeloCERT
PRP Certification
Proof certified good
2021-10-31ATHC-PRP
M5049689/33711381424688814011017 : 62AA7940B27AD55C
PRP proof power = 7
PRP: Verified
Proof certified good
2021-10-30ATHF-PP1
Start=2/7, B1=2500000, B2=87500000, Factor: 33711381424688814011017
2021-04-03-Anonymous-NF
no factor from 2^71 to 2^72
2021-04-01-Anonymous-NF
no factor from 2^70 to 2^71
2021-04-01-Anonymous-NF
no factor from 2^69 to 2^70
2020-12-21TJAOINF
no factor from 2^68 to 2^69
2018-06-11ramgeisNF
no factor from 2^67 to 2^68
2017-03-06Squeeky_SquirrelNF-PM1
B1=300000, B2=9450000, E=12
2016-05-19Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^61 to 2^63
2015-07-30snme2pm1NF
no factor from 2^65 to 2^66
2014-12-17VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-17VictordeHollanderNF
no factor from 2^63 to 2^64
2009-08-09USAFSSNF-PM1
B1=55000, B2=907500, E=6