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
53225639Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 273
P-1
B1 = 635000
B2 = 19367500
LL
StatusDateUserResidueShift
Verified2012-03-06ASTERIASD5C04844D5AD5F2C32476926
Verified2019-06-26ventskusD5C04844D5AD5F2C47399486
History
DateUserTypeResult
2020-06-22-Anonymous-NF
no factor from 2^74 to 2^75
2019-06-26ventskusC-LL
D5C04844D5AD5F2C
2018-10-31Mark RoseNF
no factor from 2^73 to 2^74
2016-01-26AirSquirrelsNF
no factor from 2^72 to 2^73
2015-12-18-Anonymous-NF
no factor from 2^71 to 2^72
2015-06-08Mark RoseNF
no factor from 2^70 to 2^71
2012-03-06ASTERIASC-LL
D5C04844D5AD5F2C
2011-05-12Zet_korNF
no factor from 2^69 to 2^70
2010-09-23EthanNF
no factor from 2^68 to 2^69
2010-09-16unconnectedNF-PM1
B1=635000, B2=19367500, E=6
2009-04-26Johannes WeingartnerNF
no factor from 2^67 to 2^68
2009-01-05SAHS Math DeptNF
no factor from 2^66 to 2^67
2008-12-16SAHS Math DeptNF
no factor from 2^65 to 2^66
2008-12-16usmfunNF
no factor from 2^64 to 2^65
2008-10-14-Anonymous-NF
no factor to 2^64