Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
42283159TF
No factors below 273
TF target 272
P-1
B1 = 380000
B2 = 1900000
LL
StatusDateUserResidueShift
Verified2010-02-21ahmerali8247CF36BD8008B935538256
Verified2017-12-27Mark Rose8247CF36BD8008B940000640
History
DateUserTypeResult
2022-04-13RichD0NF
no factor from 2^72 to 2^73
2017-12-27Mark RoseC-LL
8247CF36BD8008B9
2015-09-12AirSquirrelsNF
no factor from 2^71 to 2^72
2015-03-19Mark RoseNF
no factor from 2^70 to 2^71
2015-01-23chalsallNF
no factor from 2^69 to 2^70
2010-02-21ahmeraliC-LL
8247CF36BD8008B9
2009-11-22ahmeraliNF-PM1
B1=380000, B2=1900000
2009-11-19ahmeraliNF
no factor to 2^69