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
61550917TF
No factors below 274
TF target 274
P-1
B1 = 585000
B2 = 11846250
LL
StatusDateUserResidueShift
Unverified2013-07-19LookAS98FB0D7D0A053C__48834299
PRP
StatusDateUserResidueShiftTypeBase
Verified2021-07-08adamgmC4B0F7150C8D5EB7013
Verified2021-07-20_p95holder_C4B0F7150C8D5EB76134903513
History
DateUserTypeResult
2021-07-20_p95holder_C-PRP
C4B0F7150C8D5EB7
PRP: Verified
PRP without proof (not generated)
2021-07-08adamgmC-PRP
C4B0F7150C8D5EB7
PRP: Verified
PRP without proof (not generated)
2016-02-25Judge HaleNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2013-07-19LookASC-LL
98FB0D7D0A053C__
2013-04-22Brian ChanNF-PM1
B1=585000, B2=11846250, E=6
2013-02-10garoNF
no factor from 2^72 to 2^73
2013-02-10garoNF
no factor from 2^71 to 2^72
2013-02-10garoNF
no factor from 2^70 to 2^71
2011-11-17ddboy3NF
no factor from 2^69 to 2^70
2009-10-10Geoff WingNF
no factor from 2^68 to 2^69
2009-10-04Geoff WingNF
no factor from 2^67 to 2^68
2009-09-29MarzbugNF
no factor from 2^66 to 2^67
2009-09-26MarzbugNF
no factor from 2^65 to 2^66
2009-09-23oodairaNF
no factor from 2^64 to 2^65
2009-04-18markrNF
no factor from 2^63 to 2^64