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
63019783
Composite: proven not-prime with Lucas-Lehmer test
No factors below 276
TF target 274
P-1
B1 = 565000
B2 = 11300000
LL
StatusDateUserResidueShiftSoftware
Bad2013-11-02Ake Tilander8DEFD484F28D645210038830Windows 64-bit,Prime95,v26,(aka We4)
Bad2023-03-16lordloucksterDED9FAFD1A929DA841077552Linux 64-bit,Prime95,v30.8,build 18
Verified2023-03-22lordlouckster02C69C667D66C16F48667385Linux 64-bit,Prime95,v30.8,build 18
Verified2023-03-27lordlouckster02C69C667D66C16F14621279Linux 64-bit,Prime95,v30.8,build 18
Verified2023-04-03Ryan Propper02C69C667D66C16F17573035Linux 64-bit,Prime95,v30.8,build 12
Verified2023-05-31smitjja02C69C667D66C16F42543835Linux 64-bit,Prime95,v30.7,build 9
History
DateUserTypeResult
2023-10-04Smok_bmv NFno factor TF: 75-76
2023-10-04Smok_bmv NFno factor TF: 74-75
2023-05-31smitjjaC-LL02C69C667D66C16F
2023-04-03Ryan PropperC-LL02C69C667D66C16F
2023-03-27lordloucksterC-LL02C69C667D66C16F
2023-03-22lordloucksterC-LL02C69C667D66C16F
2023-03-16lordloucksterC-LLDED9FAFD1A929DA8
2023-03-11mikereedwtNF-PM1B1=400000, B2=13002660
2016-02-23Mark RoseNFno factor TF: 59-63
2013-11-02Ake TilanderC-LL8DEFD484F28D6452
2013-06-09TheJudgerNF-PM1B1=565000, B2=11300000, E=12
2013-04-05delta_tNFno factor TF: 73-74
2013-04-03delta_tNFno factor TF: 72-73
2013-04-03delta_tNFno factor TF: 71-72
2013-03-09garoNFno factor TF: 70-71
2011-12-27-anonymous-NFno factor TF: 69-70
2009-10-25NoWhereManNFno factor TF: 68-69
2009-10-17Team_DeutschlandNFno factor TF: 67-68
2009-10-10pomakisNFno factor TF: 66-67
2009-10-02glubexNFno factor TF: 65-66
2009-09-13Nemosoft Unv.NFno factor TF: 64-65
2009-02-08Wojciech FlorekNFno factor TF: 63-64
2003-07-21Gordon SpenceNFno factor TF: 1-59
1999-11-17-anonymous-NFno factor TF: 1-51