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
10456571Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 2000000
B2 = 2663048850
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2000-12-31MechEngrGATech36682FD92FDF3DF93155461
Verified2004-02-07Helmut Michel36682FD92FDF3DF97922066
History
DateUserTypeResult
2025-04-18Andrew BNF
no factor from 2^72 to 2^73
2024-04-05Sid & AndyNF-PM1
B1=2000000, B2=2663048850
2021-10-26SRBaseNF
no factor from 2^71 to 2^72
2021-08-11SRBaseNF
no factor from 2^70 to 2^71
2020-08-12ViliamFNF
no factor from 2^69 to 2^70
2017-11-13ramgeisNF
no factor from 2^68 to 2^69
2017-09-25-Anonymous-NF
no factor from 2^67 to 2^68
2015-12-11VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-04ThaNF
no factor from 2^65 to 2^66
2013-08-23David CampeauNF
no factor from 2^64 to 2^65
2012-11-29NesowaNF-PM1
B1=145000, B2=2875000, E=6