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
43481617TF
No factors below 275
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2009-11-28curtisc61EA69C1A30C54A815671038
Verified2017-01-26basey61EA69C1A30C54A830862750
History
DateUserTypeResult
2021-02-22-Anonymous-NF
no factor from 2^74 to 2^75
2021-01-26Sid & AndyNF-PM1
B1=1000000, B2=20000000
2019-12-31-Anonymous-NF
no factor from 2^73 to 2^74
2019-09-30-Anonymous-NF
no factor from 2^72 to 2^73
2017-01-26baseyC-LL
61EA69C1A30C54A8
2015-09-12-Anonymous-NF
no factor from 2^71 to 2^72
2015-09-12-Anonymous-NF
no factor from 2^70 to 2^71
2015-03-27Andrew BNF
no factor from 2^69 to 2^70
2014-04-04Gordon SpenceNF
no factor from 2^68 to 2^69
2009-11-28curtiscC-LL
61EA69C1A30C54A8
2009-10-02curtiscNF-PM1
B1=725000