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
55610531TF
No factors below 273
TF target 273
P-1
B1 = 550000
B2 = 11687500
LL
StatusDateUserResidueShift
Bad2013-02-18Brian Barbagallo15C95C594CB4B2562390614
Verified2013-06-15WileECoyote910B0981B0EB5CD211801562
Verified2015-10-21MadPoo910B0981B0EB5CD27494044
History
DateUserTypeResult
2015-10-21MadPooC-LL
910B0981B0EB5CD2
2015-07-29Mark RoseNF
no factor from 2^72 to 2^73
2013-06-15WileECoyoteC-LL
910B0981B0EB5CD2
2013-02-18Brian BarbagalloC-LL
15C95C594CB4B256
2012-04-29TheJudgerNF-PM1
B1=550000, B2=11687500, E=6
2012-04-14Craig MeyersNF
no factor from 2^70 to 2^72
2011-06-01David CampeauNF
no factor from 2^69 to 2^70
2011-04-15Carsten KossendeyNF
no factor from 2^68 to 2^69
2009-05-18kutensNF
no factor from 2^67 to 2^68
2009-01-30driveByUpgradesNF
no factor from 2^66 to 2^67
2009-01-29Andrew LemyakinNF
no factor from 2^65 to 2^66
2009-01-25-Anonymous-NF
no factor from 2^64 to 2^65
2008-08-11-Anonymous-NF
no factor to 2^64