26 486 981 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 2⁷⁵

TF target 2⁷⁰

P-1

B1 =	285000
B2 =	3776250

Status	Date	User	Residue	Shift	Software
Verified	2005-02-02	Jeremy Portzer	E63F263CE9E363B3	17135012	Linux 32-bit,Prime95,v23,(aka WZ2)
Verified	2012-08-01	Dubslow	E63F263CE9E363B3	0	CUDALucas v2.04 Beta

History

Date	User	Type	Result
2021-10-17	TheJudger	NF	no factor TF: 74-75
2021-09-30	TheJudger	NF	no factor TF: 73-74
2021-08-25	TheJudger	NF	no factor TF: 72-73
2021-08-25	TheJudger	NF	no factor TF: 71-72
2021-04-30	mikr	NF	no factor TF: 70-71
2017-04-15	ramgeis	NF	no factor TF: 69-70
2012-08-01	Dubslow	C-LL	E63F263CE9E363B3
2011-12-27	bcp19	NF	no factor TF: 68-69
2011-10-23	Chuck	NF	no factor TF: 67-68
2005-02-02	-anonymous-	C-LL	E63F263CE9E363B3
2004-11-22	-anonymous-	NF-PM1	B1=285000, B2=3776250
2004-08-06	karypm	NF	no factor TF: 1-67
2004-06-04	markr	NF	no factor TF: 1-62