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
15124699Factored
FactorDigitsBitsDate
3266258086527921828679435203989965966338124.62022-03-13 15:58:04
ECM
DigitsB1Curves
255000014 / 280
Estimated T-Level: 20.3 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-07-06john gambleD6DAA7829175CE6F8491786
Verified (Factored)2005-09-22Marc Getty / Phil FizurD6DAA7829175CE6F9745728
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-11-10Naegi Makoto08B5A384CAA698031724370253
P-1 factors
DateFactorB1B2
2022-03-133266258086527921828679435203989965966315000004336061730
History
DateUserTypeResult
2022-11-10Gary E. MillerCERT
PRP Certification
Proof certified good
2022-11-10Naegi MakotoC-PRP
M15124699/32662580865279218286794352039899659663 : 08B5A384CAA69803
PRP proof power = 8
PRP: Verified
Proof certified good
2022-09-27ATHNF-PP1
Start=2/7, B1=1000000, B2=29000000
2022-03-13LuminescenceF-PM1
Factor: 32662580865279218286794352039899659663 / (P-1, B1=1500000, B2=4336061730)
2021-10-09-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-03SRBaseNF
no factor from 2^70 to 2^71
2021-06-28lycornNF
no factor from 2^69 to 2^70
2017-10-10ramgeisNF
no factor from 2^68 to 2^69
2017-01-10mikrNF
no factor from 2^67 to 2^68
2016-09-01ThaNF-PM1
B1=300000, B2=6000000, E=12
2014-05-14NesowaNF
no factor from 2^66 to 2^67
2013-09-18David CampeauNF
no factor from 2^65 to 2^66