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

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MnStatusDetails
73083007Factored
FactorDigitsBitsDate
19896229139133430881010531407338439196939127.22015-04-19 15:23:42
P-1 factors
DateFactorB1B2
2015-04-1919896229139133430881010531407338439196967000013902500
History
DateUserTypeResult
2015-04-19TheJudgerF-PM1
Factor: 198962291391334308810105314073384391969 / (P-1, B1=670000, B2=13902500, E=12)
2015-04-01SWL551NF
no factor from 2^73 to 2^74
2015-04-01SWL551NF
no factor from 2^72 to 2^73
2013-08-09nate.andersNF
no factor from 2^71 to 2^72
2013-08-09nate.andersNF
no factor from 2^70 to 2^71
2013-05-10ArtfulDodgerNF
no factor from 2^69 to 2^70
2010-10-30Beat BucheliNF
no factor from 2^68 to 2^69
2010-08-28Sid & AndyNF
no factor from 2^67 to 2^68
2010-08-24-Anonymous-NF
no factor from 2^66 to 2^67
2010-08-12-Anonymous-NF
no factor from 2^65 to 2^66
2010-08-05-Anonymous-NF
no factor from 2^64 to 2^65
2008-06-28George WoltmanNF
no factor to 2^64