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
54979153Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 655000
B2 = 18340000
LL
StatusDateUserResidueShift
Verified2014-07-09Mike Neurohr8776CFEACE6D6F8D45267401
Verified2020-05-12kracker8776CFEACE6D6F8D0
History
DateUserTypeResult
2020-06-05Mark RoseNF
no factor from 2^73 to 2^74
2020-05-12krackerC-LL
8776CFEACE6D6F8D
2019-06-08Mark RoseNF
no factor from 2^73 to 2^74
2014-07-09Mike NeurohrC-LL
8776CFEACE6D6F8D
2014-01-12ktonyNF
no factor from 2^72 to 2^73
2012-08-24lycornNF
no factor from 2^71 to 2^72
2011-08-08Paul LeylandNF
no factor from 2^70 to 2^71
2011-07-25benthomasNF
no factor from 2^69 to 2^70
2011-07-13André JordiNF
no factor from 2^68 to 2^69
2011-07-09S485122NF-PM1
B1=655000, B2=18340000
2009-05-12Cereal BusinessNF
no factor from 2^67 to 2^68
2009-01-05CyberChris70NF
no factor from 2^66 to 2^67
2009-01-04CyberChris70NF
no factor from 2^65 to 2^66
2009-01-02CyberChris70NF
no factor from 2^64 to 2^65
2008-12-31cnaTb_xo4yNF
no factor from 2^63 to 2^64
2008-07-29-Anonymous-NF
no factor to 2^63