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
28315109Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 270
P-1
B1 = 290000
B2 = 3625000
LL
StatusDateUserResidueShift
Verified2005-10-04Oliver WurdakD37571D5BE8030F221758846
Verified2012-07-02-Anonymous-D37571D5BE8030F221135863
History
DateUserTypeResult
2022-11-21RichD0NF
no factor from 2^72 to 2^73
2021-03-20Dylan DelgadoNF
no factor from 2^71 to 2^72
2021-01-04mikrNF
no factor from 2^70 to 2^71
2017-03-26ramgeisNF
no factor from 2^69 to 2^70
2012-07-02-Anonymous-C-LL
D37571D5BE8030F2
2011-12-10bcp19NF
no factor from 2^68 to 2^69