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
52511519Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 610000
B2 = 15555000
LL
StatusDateUserResidueShift
Verified2011-08-28curtisc81DB32C9814FA46B27614074
Verified2019-11-30Ryan Propper81DB32C9814FA46B50285411
History
DateUserTypeResult
2019-11-30Ryan PropperC-LL
81DB32C9814FA46B
2019-07-02lobsterfordinnerNF
no factor from 2^73 to 2^74
2016-01-14AirSquirrelsNF
no factor from 2^72 to 2^73
2015-12-18-Anonymous-NF
no factor from 2^71 to 2^72
2015-11-02Mark RoseNF
no factor from 2^70 to 2^71
2014-10-26NesowaNF
no factor from 2^69 to 2^70
2011-08-28curtiscC-LL
81DB32C9814FA46B
2010-08-14SchrikNF
no factor from 2^68 to 2^69
2010-08-10Sid & AndyNF-PM1
B1=610000, B2=15555000
2009-04-29MarzbugNF
no factor from 2^67 to 2^68
2009-04-26MarzbugNF
no factor from 2^66 to 2^67
2009-02-08BIGMATHNF
no factor from 2^65 to 2^66
2009-02-07BIGMATHNF
no factor from 2^64 to 2^65
2008-11-13DerekNF
no factor to 2^64