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
293507Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 268
TF target 244
TF below 2^102 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 1000000000
B2 = 88277724004470
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000678 / 1566
Estimated T-Level: 32.2 ⓘ
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski10890
VerifiedMatt Fischer49EFBEDB15F110890
VerifiedBrian J. Beesley49EFBEDB15F110890
VerifiedEivind Triel49EFBEDB15F11089199544
Verified2016-06-01MadPoo49EFBEDB15F11089114353
History
DateUserTypeResult
2024-07-30oodairaNF-PM1
B1=1000000000, B2=88277724004470
2023-02-05masserNF-PP1
Start=6/5, B1=20000000, B2=620000000
2023-01-28masserNF-PP1
Start=194/23, B1=20000000, B2=620000000
2023-01-27masserNF-PP1
Start=2/7, B1=20000000, B2=620000000
2022-11-28Gordon SpenceNF
no factor from 2^67 to 2^68
2022-11-28Gordon SpenceNF
no factor from 2^66 to 2^67
2022-05-31Sid & AndyNF-PM1
B1=191000000, B2=2201007618810
2022-05-31LordJuliusNF-PM1
B1=101000000, B2=4170039793920
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-12-04Gordon SpenceNF
no factor from 2^65 to 2^66
2018-03-29Gordon SpenceNF
no factor from 2^64 to 2^65
2018-03-22BloodERazorNF
no factor from 2^64 to 2^65
2016-06-01MadPooC-LL
49EFBEDB15F11089
2015-12-31Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-31Gordon SpenceNF
no factor from 2^62 to 2^63
2015-08-13NRNF
no factor from 2^61 to 2^62
2013-06-18lycornNF
no factor from 2^60 to 2^61
2012-08-13markrNF-PM1
B1=12000000, B2=500000000, E=12
2011-08-01JossNF-PM1
B1=1628230
2009-01-26Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-03Sturle SundeNF
no factor from 2^58 to 2^59