Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
1717151TF
No factors below 271
TF target 261
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 17000000
B2 = 256271815800
ECM
DigitsB1Curves
2550000280 / 280
30250000103 / 640
Estimated T-Level: 25.8
LL
StatusDateUserResidueShift
VerifiedDirk Swanson365DFE90726803310
Verified1999-02-21Fernando Aversa365DFE9072680331198871
Verified2015-07-19MadPoo365DFE90726803311208481
History
DateUserTypeResult
2023-06-20linamentNF-PM1
B1=17000000, B2=256271815800
2023-06-19linamentNF-PM1
B1=17000000
2023-03-19JossNF-PM1
B1=1717151, B2=3511235910
2023-01-04JossNF-PM1
B1=1717151, B2=1253147280
2021-06-09LaurVNF
no factor from 2^70 to 2^71
2021-06-07LaurVNF-PP1
Start=2/7, B1=5000000, B2=365000000
2021-05-30LaurVNF
no factor from 2^69 to 2^70
2021-05-30LaurVNF
no factor from 2^68 to 2^69
2021-05-10Carlos PinhoNF-PP1
Start=2/7, B1=1000000, B2=51000000
2019-06-17TJAOINF
no factor from 2^67 to 2^68
2018-10-16JossNF-PM1
B1=1717151, B2=188886610, E=12
2018-08-21JossNF-PM1
B1=1717151, B2=171715100, E=12
2018-05-28TJAOINF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-09-01ramgeisNF
no factor from 2^65 to 2^66
2015-08-09mikrNF-PM1
B1=3642200, B2=123456789, E=12
2015-07-24JossNF-PM1
B1=1562684
2015-07-19MadPooC-LL
365DFE9072680331
2015-07-13JossNF-PM1
B1=1420622
2015-07-07JossNF-PM1
B1=1291475
2015-06-25JossNF-PM1
B1=1174069
2015-06-08JossNF-PM1
B1=1067336
2015-05-26JossNF-PM1
B1=970306
2015-05-22JossNF-PM1
B1=882097
2015-05-07JossNF-PM1
B1=801907
2015-05-02snme2pm1NF
no factor from 2^64 to 2^65
2015-05-02snme2pm1NF
no factor from 2^63 to 2^64
2015-05-01JossNF-PM1
B1=729007
2015-04-08JossNF-PM1
B1=602486
2015-03-14JossNF-PM1
B1=497923
2015-03-06JossNF-PM1
B1=452658
2015-02-22JossNF-PM1
B1=411508
2015-02-16JossNF-PM1
B1=374099
2015-02-03JossNF-PM1
B1=309173
2015-01-09JossNF-PM1
B1=281067
2014-10-05JossNF-PM1
B1=187378
2014-05-03JossNF-PM1
B1=150000
2014-04-01JossNF-PM1
B1=100000
2011-02-07Carsten KossendeyNF-PM1
B1=90000, B2=1507500, E=6
2010-10-27GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-22Architects CubedNF
no factor from 2^60 to 2^61