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

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MnStatusDetails
61896203Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
42957646797585965858713924812891.82013-02-27 20:14:06
P-1 factors
DateFactorB1B2
2013-02-2742957646797585965858713924815650000
History
DateUserTypeResult
2022-03-29LordJuliusNF
no factor from 2^62 to 2^63
2013-02-27gmc684F-PM1
Factor: 4295764679758596585871392481
2013-02-19kdgehmanNF
no factor from 2^72 to 2^73
2013-02-19kdgehmanNF
no factor from 2^71 to 2^72
2013-02-16megavinkNF
no factor from 2^70 to 2^71
2011-11-26eon_blue_apocalypseNF
no factor from 2^69 to 2^70
2009-10-02eon_blue_apocalypseNF
no factor from 2^68 to 2^69
2009-09-27eon_blue_apocalypseNF
no factor from 2^67 to 2^68
2009-07-25Manuel D. García RománNF
no factor from 2^66 to 2^67
2009-03-12kshaufl | AGENF
no factor from 2^65 to 2^66
2009-03-12bamNF
no factor from 2^64 to 2^65
2009-03-10-Anonymous-NF
no factor from 2^63 to 2^64