86 865 047 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 2⁷⁷

TF target 2⁷⁵

P-1

B1 =	705000
B2 =	13923750

Status	Date	User	Residue	Shift	Software
Verified	2019-12-28	-anonymous-	3E638B4A0AF602E0	35184653	Windows 64-bit,Prime95,v29.8,build 6
Verified	2019-12-28	takahashi	3E638B4A0AF602E0	67990956	Linux 64-bit,Prime95,v29.8,build 3
Verified	2020-01-01	Simon Josefsson	3E638B4A0AF602E0	78054934	Linux 64-bit,Prime95,v29.4,build 8

History

Date	User	Type	Result
2020-01-01	Simon Josefsson	C-LL	3E638B4A0AF602E0
2019-12-28	takahashi	C-LL	3E638B4A0AF602E0
2019-12-28	-anonymous-	C-LL	3E638B4A0AF602E0
2019-11-29	chuenkit	NF	no factor TF: 76-77
2018-04-17	jackwing	NF-PM1	B1=705000, B2=13923750, E=12
2018-01-11	Strolling Jellyfish	NF	no factor TF: 75-76
2018-01-11	Strolling Jellyfish	NF	no factor TF: 74-75
2017-06-12	gcardona	NF	no factor TF: 73-74
2017-04-29	Strolling Jellyfish	NF	no factor TF: 72-73
2017-04-29	Strolling Jellyfish	NF	no factor TF: 71-72
2014-09-04	Ryan Propper	NF	no factor TF: 70-71
2013-10-26	SMoffat	NF	no factor TF: 69-70
2013-08-26	David Barley	NF	no factor TF: 68-69
2013-08-21	David Barley	NF	no factor TF: 67-68
2013-06-18	processinfo	NF	no factor TF: 66-67
2013-01-30	LaurV	NF	no factor TF: 65-66
2010-11-23	Architects Cubed	NF	no factor TF: 64-65