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

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MnStatusDetails
139993981Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1202913284961537088326647112786.62024-09-25 00:53:00
P-1 factors
DateFactorB1B2
2024-09-2512029132849615370883266471112010001307713440
History
DateUserTypeResult
2024-09-25Luke DurantF-PM1
Factor: 120291328496153708832664711 / (P-1, B1=1201000, B2=1307713440)
2024-07-14Luke DurantNF
no factor from 2^76 to 2^77
2024-07-11Luke DurantNF
no factor from 2^75 to 2^76
2022-09-27storm5510NF
no factor from 2^74 to 2^75
2021-09-06LordJuliusNF
no factor from 2^73 to 2^74
2021-09-06LordJuliusNF
no factor from 2^1 to 2^63
2020-10-25SRBaseNF
no factor from 2^72 to 2^73
2017-08-03Oliver KruseNF
no factor from 2^71 to 2^72
2017-01-31proxy2222NF
no factor from 2^70 to 2^71
2016-08-31DerekNF
no factor from 2^69 to 2^70
2016-08-31DerekNF
no factor from 2^68 to 2^69
2016-08-16SummyNF
no factor from 2^67 to 2^68
2015-02-14firereddNF
no factor from 2^66 to 2^67
2012-11-26nextPrimeNF
no factor from 2^65 to 2^66
2010-12-10RichardNF
no factor from 2^64 to 2^65
2010-06-14GrunwalderGIMPNF
no factor from 2^63 to 2^64