83 233 063 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	665000
B2 =	12967500

Status	Date	User	Residue	Shift	Software
Verified	2018-02-05	Mark Filipski	B482759BED37F674	57270542	Windows 64-bit,Prime95,v28.5,build 2
Verified	2026-02-05	Greg	B482759BED37F674	0	Linux64,prpll,v46386d0

History

Date	User	Type	Result
2026-02-05	Greg	C-LL	B482759BED37F674
2018-02-05	Mark Filipski	C-LL	B482759BED37F674
2017-11-01	Oliver Kruse	NF-PM1	B1=665000, B2=12967500
2017-02-12	TheJudger	NF	no factor TF: 75-76
2017-01-01	-anonymous-	NF	no factor TF: 72-73
2017-01-01	-anonymous-	NF	no factor TF: 73-74
2017-01-01	-anonymous-	NF	no factor TF: 74-75
2017-01-01	-anonymous-	NF	no factor TF: 71-72
2014-08-09	kevshaw	NF	no factor TF: 70-71
2013-12-15	-anonymous-	NF	no factor TF: 69-70
2013-08-15	Jens Pedersen	NF	no factor TF: 68-69
2013-02-21	Matthijs Coster	NF	no factor TF: 67-68
2013-02-13	-anonymous-	NF	no factor TF: 66-67
2012-08-09	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-19	Architects Cubed	NF	no factor TF: 64-65