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
86631691Composite: proven not-prime with PRP test
TF
No factors below 276
TF target 275
P-1
B1 = 695000
B2 = 13205000
PRP
StatusDateUserResidueShiftTypeBase
Verified2019-09-09ky0urakuFF27CE08EED0BA4E3315794313
Verified2025-02-19GdSFF27CE08EED0BA4E013
History
DateUserTypeResult
2025-02-19ky0urakuCERT
PRP Certification
CERT proof power = 10
Proof certified good
2025-02-19GdSC-PRP
FF27CE08EED0BA4E
PRP proof power = 10
PRP: Verified
Proof certified good
2019-09-09ky0urakuC-PRP
FF27CE08EED0BA4E
PRP: Verified
PRP without proof (not generated)
2018-03-24kkmrkkblmbrbkNF-PM1
B1=695000, B2=13205000, E=6
2018-02-19Strolling JellyfishNF
no factor from 2^75 to 2^76
2018-02-19Strolling JellyfishNF
no factor from 2^74 to 2^75
2017-05-15gcardonaNF
no factor from 2^73 to 2^74
2017-05-10Judge HaleNF
no factor from 2^72 to 2^73
2014-01-17HAL-9000NF
no factor from 2^71 to 2^72
2013-06-16SMoffatNF
no factor from 2^70 to 2^71
2013-03-08FCG PrimesNF
no factor from 2^69 to 2^70
2013-03-02saffaNF
no factor from 2^68 to 2^69
2013-03-01saffaNF
no factor from 2^67 to 2^68
2010-11-29Michael CNF
no factor from 2^66 to 2^67
2010-11-29Michael CNF
no factor from 2^65 to 2^66
2010-10-24Michael CNF
no factor from 2^64 to 2^65