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

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MnStatusDetails
88943311Factored
FactorDigitsBitsDate
2728151736943142512879245893164718750338124.42018-10-21 14:40:56
P-1 factors
DateFactorB1B2
2018-10-212728151736943142512879245893164718750372000014220000
History
DateUserTypeResult
2018-10-21TheJudgerF-PM1
Factor: 27281517369431425128792458931647187503 / (P-1, B1=720000, B2=14220000, E=12)
2018-09-09TheJudgerNF
no factor from 2^75 to 2^76
2018-09-09TheJudgerNF
no factor from 2^74 to 2^75
2017-08-11-Anonymous-NF
no factor from 2^73 to 2^74
2017-08-11-Anonymous-NF
no factor from 2^72 to 2^73
2014-01-26Preben SNF
no factor from 2^71 to 2^72
2013-07-31PascalBieriNF
no factor from 2^70 to 2^71
2010-11-18wavelet3000NF
no factor from 2^69 to 2^70
2010-11-18wavelet3000NF
no factor from 2^68 to 2^69
2010-11-18wavelet3000NF
no factor from 2^67 to 2^68
2010-11-18wavelet3000NF
no factor from 2^66 to 2^67
2010-11-18wavelet3000NF
no factor from 2^65 to 2^66
2010-11-18wavelet3000NF
no factor from 2^64 to 2^65