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

PrimeNet Exponent Status

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MnStatusDetails
19468717Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 4000000
B2 = 5984493900
LL
StatusDateUserResidueShift
Verified2003-09-21Jerry MoseleyF6946D7D01DA754A10184209
Verified2007-06-15Sylvester ZiolkowskiF6946D7D01DA754A8147514
History
DateUserTypeResult
2025-03-03alpertronNF-PM1
B1=4000000, B2=5984493900
2024-10-11Sid & AndyNF-PM1
B1=1100000, B2=461601000
2021-11-26-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-01-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-13SRBaseNF
no factor from 2^70 to 2^71
2019-12-11lycornNF
no factor from 2^69 to 2^70
2017-11-24ramgeisNF
no factor from 2^68 to 2^69
2016-01-16NumberwangNF-PM1
B1=210000, B2=5040000, e=12
2015-09-05NumberwangNF-PM1
B1=95000, B2=1805000, e=6
2014-04-21NesowaNF
no factor from 2^67 to 2^68
2014-04-21NesowaNF
no factor from 2^66 to 2^67