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
11209907Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 268
TF below 2^96 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 20021278200
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000164 / 1566
Estimated T-Level: 30.5 ⓘ
LL
StatusDateUserResidueShift
Verified2000-11-25Sacha7F690274E545EA1B7076821
Verified2004-02-14chifinia7F690274E545EA1B1631755
Verified2004-02-23Helmut Michel7F690274E545EA1B5486912
History
DateUserTypeResult
2025-02-04James HeinrichNF
no factor from 2^72 to 2^73
2025-01-31vshNF
no factor from 2^73 to 2^74
2024-08-05vshNF
no factor from 2^72 to 2^73
2024-06-07vshNF-PM1
B1=10000000, B2=20021278200
2024-03-31vshNF-PM1
B1=7136552, B2=11109217350
2024-03-25vshNF-PM1
B1=3568276, B2=4667551350
2024-03-24vshNF-PM1
B1=1784138, B2=1703948400
2021-11-08SRBaseNF
no factor from 2^71 to 2^72
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2017-12-27ramgeisNF
no factor from 2^68 to 2^69
2017-12-27ramgeisNF
no factor from 2^67 to 2^68
2015-12-28VictordeHollanderNF
no factor from 2^66 to 2^67
2015-02-28NumberwangNF
no factor from 2^65 to 2^66
2015-01-30Sid & AndyNF-PM1
B1=130000, B2=2437500, E=6
2013-11-23lycornNF
no factor from 2^64 to 2^65