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
49596037Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 575000
B2 = 15093750
LL
StatusDateUserResidueShift
Verified2011-08-30Serzh1BEB61EBB7D2EFB344003228
Verified2018-09-22kha11BEB61EBB7D2EFB335364839
History
DateUserTypeResult
2019-07-06-Anonymous-NF
no factor from 2^73 to 2^74
2018-09-22kha1C-LL
1BEB61EBB7D2EFB3
2017-12-09Sid & AndyNF
no factor from 2^72 to 2^73
2015-11-10Sid & AndyNF
no factor from 2^71 to 2^72
2015-10-02Sid & AndyNF
no factor from 2^70 to 2^71
2015-07-28Gordon SpenceNF
no factor from 2^69 to 2^70
2011-08-30SerzhC-LL
1BEB61EBB7D2EFB3
2011-08-07SerzhNF-PM1
B1=575000, B2=15093750, E=12