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
11224847Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
TF below 2^85 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 20008492350
ECM
DigitsB1Curves
2550000280 / 280
30250000284 / 640
Estimated T-Level: 27.2 ⓘ
LL
StatusDateUserResidueShift
Verified2000-11-15Wee-Liam Kwan200CC82ED401B88C8794071
Verified2004-09-02Robert Braunwart200CC82ED401B88C11025012
History
DateUserTypeResult
2025-02-06James HeinrichNF
no factor from 2^72 to 2^73
2024-07-26vshNF
no factor from 2^72 to 2^73
2024-05-06vshNF-PM1
B1=10000000, B2=20008492350
2024-04-26vshNF-PM1
B1=8600000, B2=14096359200
2024-04-15vshNF-PM1
B1=4300000, B2=5610493350
2021-10-31SRBaseNF
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
2020-04-21riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
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
2015-03-14NumberwangNF
no factor from 2^65 to 2^66
2013-11-23lycornNF
no factor from 2^64 to 2^65