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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MnStatusDetails
3406181Factored6272775095469249097847
LL
StatusDateUserResidueShift
Verified (Factored)kimon berlin3A59053542DB3CF20
Verified (Factored)1999-07-26Volker Knapp3A59053542DB3CF21641216
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-12-16kkmrkkblmbrbk6FD3DCAE32431480113510253
Verified (Factored)2017-11-06Oliver Kruse6FD3DCAE324314801242639853
History
DateUserTypeResult
2021-07-13Jocelyn LaroucheNFno factor from 2^67 to 2^68
2021-02-19Jocelyn LaroucheNF-PM1B1=340618, B2=3746799, E=6
2017-12-16kkmrkkblmbrbkC-PRPM3406181/6272775095469249097847 : 6FD3DCAE32431480
2017-11-06Oliver KruseC-PRPM3406181/6272775095469249097847 : 6FD3DCAE32431480
2014-09-08HBendtzF-PM1Factor: 6272775095469249097847 / (P-1, B1=1000000, B2=20000000, e=12, n=192K)
2014-07-18Jocelyn LaroucheNF-PM1B1=78843
2012-08-18GrunwalderGIMPNFno factor from 2^1 to 2^63
2011-10-26harleeNF-PM1B1=60000, B2=945000, E=6
2011-08-07Grant McCrackenNFno factor from 2^61 to 2^62
2009-07-04Carsten KossendeyNF-PM1B1=15000, B2=206250
2009-03-25S485122NFno factor from 2^60 to 2^61
1999-07-26-Anonymous-C-LL3A59053542DB3CF2