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
19181479Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1000000
B2 = 598065270
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2003-12-23Gary GallowayDAED84D3433AABCE9080463
Verified2007-07-24Jacques CharlesDAED84D3433AABCE7039130
History
DateUserTypeResult
2024-11-16Sid & AndyNF-PM1
B1=1000000, B2=598065270
2021-11-12-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-08-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-16SRBaseNF
no factor from 2^70 to 2^71
2020-11-11James HeinrichNF-PM1
B1=395000, B2=13678000, E=12
2019-12-29lycornNF
no factor from 2^69 to 2^70
2017-11-28ramgeisNF
no factor from 2^68 to 2^69
2014-07-06NesowaNF
no factor from 2^67 to 2^68
2014-07-06NesowaNF
no factor from 2^66 to 2^67