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
75473029Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 635000
B2 = 11112500
LL
StatusDateUserResidueShift
Verified2017-08-27arnaud4E4F6ED5776B0EB754581440
Verified2024-03-28skippyd4E4F6ED5776B0EB733717264
History
DateUserTypeResult
2024-03-28skippydC-LL
4E4F6ED5776B0EB7
2017-08-27arnaudC-LL
4E4F6ED5776B0EB7
2016-03-09AnthonyRaisNF-PM1
B1=635000, B2=11112500
2016-02-23Jim SchwartzNF
no factor from 2^74 to 2^75
2016-02-23Jim SchwartzNF
no factor from 2^73 to 2^74
2016-02-07Matthias WurtingerNF
no factor from 2^72 to 2^73
2014-01-16PascalBieriNF
no factor from 2^71 to 2^72
2013-09-05ManpowreNF
no factor from 2^70 to 2^71
2012-12-13ITSNF
no factor from 2^69 to 2^70
2010-07-21GrunwalderGIMPNF
no factor from 2^68 to 2^69
2008-10-27MarzbugNF
no factor to 2^68