Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
75879733Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 277
TF target 274
P-1
B1 = 660000
B2 = 12705000
LL
StatusDateUserResidueShift
Unverified2017-10-16Dmitriy DegtiarevDFC9CA2291FFCA__8366065
History
DateUserTypeResult
2020-11-01-Anonymous-NF
no factor from 2^76 to 2^77
2020-10-16-Anonymous-NF
no factor from 2^75 to 2^76
2017-10-16Dmitriy DegtiarevC-LL
DFC9CA2291FFCA__
2016-05-04Brian ChanNF-PM1
B1=660000, B2=12705000
2016-04-22AirSquirrelsNF
no factor from 2^74 to 2^75
2016-04-16Judge HaleNF
no factor from 2^73 to 2^74
2016-03-23Judge HaleNF
no factor from 2^72 to 2^73
2015-11-05RichD0NF
no factor from 2^71 to 2^72
2013-05-19GrunwalderGIMPNF
no factor from 2^70 to 2^71
2010-10-23vapaddyNF
no factor from 2^69 to 2^70
2010-10-20vapaddyNF
no factor from 2^68 to 2^69
2010-10-18Bobbi and the StraysNF
no factor from 2^67 to 2^68
2010-10-15I2NM2NF
no factor from 2^66 to 2^67
2010-10-14-Anonymous-NF
no factor from 2^65 to 2^66
2010-08-12-Anonymous-NF
no factor from 2^64 to 2^65
2009-06-02Architects CubedNF
no factor from 2^63 to 2^64