Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
8932813Factored
FactorDigitsBitsDate
561927034341783263409758400979131102.12022-09-30 07:15:28
ECM
DigitsB1Curves
25500003 / 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)2000-03-22David B. RitchieF7E8E37729EDFD3B7995444
Verified (Factored)2003-03-07Ars Technica Team Prime RibF7E8E37729EDFD3B565148
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-10-06Oliver Kruse9BDDA3838C92D4E2132354853
P-1 factors
DateFactorB1B2
2022-09-30561927034341783263409758400979125000001772336280
History
DateUserTypeResult
2022-10-06AndreCERT
PRP Certification
Proof certified good
2022-10-06Oliver KruseC-PRP
M8932813/5619270343417832634097584009791 : 9BDDA3838C92D4E2
PRP proof power = 8
PRP: Verified
Proof certified good
2022-09-30Cong ShengzhuoF-PM1
Factor: 5619270343417832634097584009791 / (P-1, B1=2500000, B2=1772336280)
2021-12-10-Anonymous-NF
no factor from 2^72 to 2^73
2021-09-21Jon PaceNF
no factor from 2^71 to 2^72
2021-08-27SRBaseNF
no factor from 2^70 to 2^71
2021-08-20SRBaseNF
no factor from 2^69 to 2^70
2020-03-03chuenkitNF
no factor from 2^68 to 2^69
2018-04-06BloodERazorNF
no factor from 2^67 to 2^68
2016-03-12snme2pm1NF
no factor from 2^66 to 2^67
2015-05-17VictordeHollanderNF
no factor from 2^65 to 2^66
2014-01-10lycornNF
no factor from 2^64 to 2^65
2012-07-17James HeinrichNF-PM1
B1=170000, B2=3612500, E=6