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
14096521Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 7000000
B2 = 210000000
ECM
DigitsB1Curves
255000023 / 280
Estimated T-Level: 20.4 ⓘ
LL
StatusDateUserResidueShift
Verified2002-11-16glenn hanna6CA4D864695B687C843159
Bad2005-08-01Christian Beckel17C129BF1FD023489219769
Verified2006-02-15Shane Sanford6CA4D864695B687C13347218
History
DateUserTypeResult
2021-10-26Nagasan64NF
no factor from 2^72 to 2^73
2021-09-17masserNF-PP1
Start=2/7, B1=1000000, B2=53000000
2021-05-27masserNF
no factor from 2^71 to 2^72
2021-01-11masserNF-PM1
B1=7000000, B2=210000000
2020-12-05masserNF-PM1
B1=580000, B2=13600000, e=12
2020-08-20masserNF
no factor from 2^69 to 2^70
2020-08-20masserNF
no factor from 2^70 to 2^71
2018-02-05ramgeisNF
no factor from 2^68 to 2^69
2018-02-05ramgeisNF
no factor from 2^67 to 2^68
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2015-08-23ThaNF
no factor from 2^66 to 2^67