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
19326721Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1000000
B2 = 653448510
LL
StatusDateUserResidueShift
Verified2003-09-21Matthijs Wolters138C228B8620DC642435489
Verified2007-06-15Mark Kroska138C228B8620DC6417143538
History
DateUserTypeResult
2024-08-18Naegi MakotoNF-PM1
B1=1000000, B2=653448510
2021-11-19-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-02-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-12SRBaseNF
no factor from 2^70 to 2^71
2019-12-18lycornNF
no factor from 2^69 to 2^70
2017-11-22ramgeisNF
no factor from 2^68 to 2^69
2014-05-29NesowaNF
no factor from 2^67 to 2^68
2014-05-29NesowaNF
no factor from 2^66 to 2^67