Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
268055783Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
15601282246810780933612270.42019-11-03 18:50:59
History
DateUserTypeResult
2025-04-07James HeinrichF
Factor: 1560128224681078093361 / TF: 70-71
2019-11-03Smok_bmv F
Factor: 1560128224681078093361 / TF: 70-71*
2019-06-07Chabot PrimeNF
no factor from 2^69 to 2^70
2018-06-28Chabot PrimeNF
no factor from 2^68 to 2^69
2016-08-02XZTNF
no factor from 2^67 to 2^68
2015-12-31mikeblasNF
no factor from 2^66 to 2^67
2013-11-25Michael BahlenNF
no factor from 2^65 to 2^66
2011-08-24RichardNF
no factor from 2^64 to 2^65
2010-03-23carlos56NF
no factor from 2^63 to 2^64
2010-03-23carlos56NF
no factor from 2^62 to 2^63