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
8503189Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 268
P-1
B1 = 2500000
B2 = 6578702130
ECM
DigitsB1Curves
2550000108 / 280
Estimated T-Level: 21.9 ⓘ
LL
StatusDateUserResidueShift
Verified2000-02-09MechEngrGATechE7B820B776208D137096256
Verified2003-01-25Ars Technica Team Prime RibE7B820B776208D132836384
History
DateUserTypeResult
2024-08-13Jinyuan WangNF-PP1
Start=2/7, B1=3000000, B2=2997000000
2023-02-10ThaNF-PM1
B1=2500000, B2=6578702130
2021-10-05SRBaseNF
no factor from 2^71 to 2^72
2021-08-29SRBaseNF
no factor from 2^70 to 2^71
2021-08-20SRBaseNF
no factor from 2^69 to 2^70
2020-01-24TJAOINF
no factor from 2^68 to 2^69
2020-01-14Dylan DelgadoNF-PM1
B1=245000, B2=4593750, E=6
2018-03-29monstNF
no factor from 2^67 to 2^68
2016-01-18snme2pm1NF
no factor from 2^66 to 2^67
2015-05-25VictordeHollanderNF
no factor from 2^65 to 2^66
2014-01-30lycornNF
no factor from 2^64 to 2^65
2012-05-08bcp19NF-PM1
B1=100000, B2=1825000, E=6