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

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MnStatusDetails
197001517Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4713245207916408212092168.72016-11-13 21:08:49
History
DateUserTypeResult
2025-03-14James HeinrichF
Factor: 471324520791640821209 / TF: 68-70
2016-11-13Alex_soldierF
Factor: 471324520791640821209 / TF: 68-69*
2016-03-10laleraNF
no factor from 2^67 to 2^68
2015-09-16sky_windhNF
no factor from 2^66 to 2^67
2013-06-30OS1NF
no factor from 2^65 to 2^66
2011-04-24Gordon SpenceNF
no factor from 2^64 to 2^65
2010-08-07Torchwood InstituteNF
no factor from 2^63 to 2^64