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
5942597Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 266
P-1
B1 = 4300000
B2 = 5518763712
ECM
DigitsB1Curves
2550000109 / 280
Estimated T-Level: 21.9 ⓘ
LL
StatusDateUserResidueShift
Verified1998-10-18Greg Hewgill71E82741365823370
Verified2001-04-01Brian Jue71E82741365823374768057
History
DateUserTypeResult
2022-11-12Sid & AndyNF-PM1
B1=4300000, B2=5518763712
2022-09-03Wentao HuangNF-PM1
B1=720000, B2=290765790
2021-10-15SRBaseNF
no factor from 2^71 to 2^72
2021-08-31SRBaseNF
no factor from 2^70 to 2^71
2021-08-18SRBaseNF
no factor from 2^69 to 2^70
2020-06-05TJAOINF
no factor from 2^68 to 2^69
2018-04-11ramgeisNF
no factor from 2^67 to 2^68
2016-06-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-09-21snme2pm1NF
no factor from 2^65 to 2^66
2014-11-18NesowaNF-PM1
B1=360000, B2=8910000, E=12
2014-10-01monstNF
no factor from 2^64 to 2^65
2014-09-29NesowaNF
no factor from 2^63 to 2^64
2011-03-18USAFSSNF-PM1
B1=70000, B2=1155000, E=6