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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
69129889Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 715000
B2 = 15908750
LL
StatusDateUserResidueShift
Verified2014-09-19curtiscDB3958B317A19D8813870553
Verified2024-09-25Cong ShengzhuoDB3958B317A19D8820965840
History
DateUserTypeResult
2024-09-25Cong ShengzhuoC-LL
DB3958B317A19D88
2019-06-03NesowaNF
no factor from 2^74 to 2^75
2016-03-30Mark RoseNF
no factor from 2^63 to 2^64
2016-03-29Mark RoseNF
no factor from 2^64 to 2^65
2014-09-19curtiscC-LL
DB3958B317A19D88
2014-06-23The MawnNF
no factor from 2^73 to 2^74
2014-06-21BdotNF
no factor from 2^72 to 2^73
2014-03-29Gordon SpenceNF-PM1
B1=715000, B2=15908750
2014-01-31garoNF
no factor from 2^71 to 2^72
2012-09-28Bold_SeekerNF
no factor from 2^70 to 2^71
2012-03-31StefanNF
no factor from 2^69 to 2^70
2010-02-03root_slaterNF
no factor from 2^68 to 2^69
2008-06-01James HeinrichNF
no factor from 2^67 to 2^68
2008-05-29Sturle SundeNF
no factor from 2^66 to 2^67
2008-05-28Sturle SundeNF
no factor from 2^65 to 2^66