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
68181293Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 640000
B2 = 15840000
LL
StatusDateUserResidueShift
Verified2016-06-15rowmanEF99366D9E8EC14012743368
Verified2024-02-08MirraEF99366D9E8EC1402145320
History
DateUserTypeResult
2024-02-08MirraC-LL
EF99366D9E8EC140
2016-06-15rowmanC-LL
EF99366D9E8EC140
2015-12-09endless_mikeNF
no factor from 2^74 to 2^75
2014-07-16-Anonymous-NF-PM1
B1=640000, B2=15840000, e=6
2014-07-13ktonyNF
no factor from 2^73 to 2^74
2014-07-13ktonyNF
no factor from 2^72 to 2^73
2014-07-13ktonyNF
no factor from 2^71 to 2^72
2012-10-07Clown_RoyalNF
no factor from 2^70 to 2^71
2012-03-08Martti JärviNF
no factor from 2^69 to 2^70
2010-01-26bzmNF
no factor from 2^68 to 2^69
2010-01-24Paul DietrichNF
no factor from 2^67 to 2^68
2010-01-21Paul DietrichNF
no factor from 2^66 to 2^67
2010-01-19Paul DietrichNF
no factor from 2^65 to 2^66
2010-01-17ticky_chalkNF
no factor from 2^64 to 2^65
2008-11-171997rj7NF
no factor to 2^64