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
42525269
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 760000
B2 = 21000000
LL
StatusDateUserResidueShiftSoftware
Verified2011-06-11arnaud1376DD5EDE17A91226010770Windows Service,Prime95,v26.6,build 3
Bad2017-02-23Xolotl000000000000000010046649Linux 64-bit,Prime95,v28.9,build 2
Bad2017-02-23Xolotl00000000000000005952275Linux 64-bit,Prime95,v28.9,build 2
Verified2017-02-24MadPoo 🙂1376DD5EDE17A91235679788Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2024-06-18James HeinrichNFno factor TF: 69-70
2018-03-12riccardo ubertiNF-PM1B1=760000, B2=21000000, E=12
2017-02-24Bruno VictalNF-PM1B1=470000, B2=11750000, E=12
2017-02-24MadPoo 🙂C-LL
1376DD5EDE17A912
2017-02-24Bruno VictalNFno factor TF: 73-74
2017-02-24Bruno VictalNFno factor TF: 72-73
2017-02-23XolotlC-LL
0000000000000000
2017-02-23XolotlC-LL18FD772E565F71__
2015-08-27-anonymous-NFno factor TF: 71-72
2015-03-11NickOfTimeNFno factor TF: 70-71
2015-02-22Carsten KossendeyNFno factor TF: 69-70
2014-03-07LaurVNFno factor TF: 68-69
2011-06-11arnaudC-LL
1376DD5EDE17A912
2009-03-20ezoNF-PM1B1=710000
2007-07-04Team Prime RibNFno factor TF: 1-68