26 217 707 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 =	3633750

Status	Date	User	Residue	Shift	Software
Bad	2004-11-22	Christopher Page	916591F968A4EECC	17598580	Windows,Prime95,v23,(aka WZ1)
Verified	2012-02-24	spradlin	BB6C94A58549F54F	14326088	Linux 64-bit,Prime95,v26.6,build 3
Verified	2012-07-15	Dubslow	BB6C94A58549F54F	2822421	Linux 64-bit,Prime95,v27.7,build 2

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
2021-08-26	TheJudger	NF	no factor TF: 72-73
2021-08-26	TheJudger	NF	no factor TF: 71-72
2021-04-14	mikr	NF	no factor TF: 70-71
2017-04-04	ramgeis	NF	no factor TF: 69-70
2012-07-15	Dubslow	C-LL	BB6C94A58549F54F
2012-02-24	spradlin	C-LL	BB6C94A58549F54F
2011-10-28	hustensaft	NF	no factor TF: 68-69
2011-10-15	Chuck	NF	no factor TF: 67-68
2004-11-22	CJPage	C-LL	916591F968A4EECC
2004-11-03	CJPage	NF-PM1	B1=285000, B2=3633750
2004-07-13	-anonymous-	NF	no factor TF: 1-67