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
42050497TF
No factors below 273
TF target 272
P-1
B1 = 485000
B2 = 9215000
LL
StatusDateUserResidueShift
Verified2009-04-23rx73502B83CDF13EDDF13121826404
Verified2017-12-14Evgeniy Zavialov2B83CDF13EDDF1316393316
History
DateUserTypeResult
2020-05-07Random GPUsNF
no factor from 2^72 to 2^73
2017-12-14Evgeniy ZavialovC-LL
2B83CDF13EDDF131
2015-08-25-Anonymous-NF
no factor from 2^71 to 2^72
2015-02-27Mark RoseNF
no factor from 2^70 to 2^71
2015-01-15Mark RoseNF
no factor from 2^69 to 2^70
2014-03-03LaurVNF
no factor from 2^68 to 2^69
2009-04-23rx7350C-LL
2B83CDF13EDDF131
2009-03-12rx7350NF-PM1
B1=485000, B2=9215000