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
81270349Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 275
P-1
B1 = 815000
B2 = 815000
PRP
StatusDateUserResidueShiftTypeBase
Verified2018-01-27Chun sung sooD1546B74AEE3FE185057946613
Verified2019-11-18ky0urakuD1546B74AEE3FE18013
History
DateUserTypeResult
2019-11-18ky0urakuC-PRP
D1546B74AEE3FE18
PRP: Verified
PRP without proof (not generated)
2018-01-27Chun sung sooC-PRP
D1546B74AEE3FE18
PRP: Verified
PRP without proof (not generated)
2017-05-29YxinityNF-PM1
B1=815000
2016-11-18-Anonymous-NF
no factor from 2^74 to 2^75
2016-11-18-Anonymous-NF
no factor from 2^73 to 2^74
2016-10-11Judge HaleNF
no factor from 2^72 to 2^73
2014-02-24Ilya AlexandrovNF
no factor from 2^71 to 2^72
2014-02-24Ilya AlexandrovNF
no factor from 2^70 to 2^71
2013-08-09SMoffatNF
no factor from 2^69 to 2^70
2013-06-07g0bNF
no factor from 2^68 to 2^69
2013-02-21KYOJI_KAMEINF
no factor from 2^67 to 2^68
2013-01-27Cow_tippingNF
no factor from 2^66 to 2^67
2012-09-05Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-12Architects CubedNF
no factor from 2^64 to 2^65