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:





MnDetails
41773421
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 272
P-1
B1 = 480000
B2 = 11520000
LL
StatusDateUserResidueShiftSoftware
Verified2012-03-11Dubslow73257B60D7A852E331981938Linux 64-bit,Prime95,v27.4,build 1
Bad2013-06-21ANONYMOUS549DEDEC93EE3D9724740599Windows,Prime95,v24 final,(aka Wc1)
Verified2016-10-14MadPoo 🙂73257B60D7A852E339351083Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2021-02-06-anonymous-NFno factor TF: 74-75
2019-12-30-anonymous-NFno factor TF: 73-74
2016-10-14MadPoo 🙂C-LL73257B60D7A852E3
2013-06-21ANONYMOUSC-LL549DEDEC93EE3D97
2012-03-11DubslowC-LL73257B60D7A852E3
2012-03-03lycornNFno factor TF: 72-73
2012-03-02DubslowNFno factor TF: 69-72
2009-10-06ANONYMOUSNF-PM1B1=480000, B2=11520000
2007-05-12-anonymous-NFno factor TF: 1-69