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
61244177Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 274
P-1
B1 = 540000
B2 = 10395000
LL
StatusDateUserResidueShift
Verified2014-04-22curtiscA2D23DEC446E597A276468
Verified2022-03-27Andrew_andA2D23DEC446E597A35475868
History
DateUserTypeResult
2022-03-27Andrew_andC-LL
A2D23DEC446E597A
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2014-04-22curtiscC-LL
A2D23DEC446E597A
2013-06-16Kyle AskineNF-PM1
B1=540000, B2=10395000, E=6
2013-06-14BigBrotherNF
no factor from 2^73 to 2^74
2013-01-17ChuckNF
no factor from 2^72 to 2^73
2012-04-28Craig MeyersNF
no factor from 2^69 to 2^72
2009-10-11Sturle SundeNF
no factor from 2^68 to 2^69
2009-10-10-Anonymous-NF
no factor from 2^67 to 2^68
2009-10-08-Anonymous-NF
no factor from 2^66 to 2^67
2009-04-13camelNF
no factor from 2^65 to 2^66
2009-02-03poomkNF
no factor from 2^64 to 2^65
2009-02-01bayanneNF
no factor from 2^63 to 2^64