80 195 693 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 =	675000
B2 =	13668750

Status	Date	User	Residue	Shift	Software
Verified	2017-05-06	DominusKush	DE33D6148720118C	23399984	Windows 64-bit,Prime95,v28.10,build 1
Verified	2026-03-04	Kriesel	DE33D6148720118C	77351838	Windows 64-bit,Prime95,v30.18,build 2

History

Date	User	Type	Result
2026-03-04	Kriesel	C-LL	DE33D6148720118C
2021-11-29	LordJulius	NF	no factor TF: 75-76
2017-05-06	DominusKush	C-LL	DE33D6148720118C
2016-12-15	Nesowa	NF-PM1	B1=675000, B2=13668750, E=12
2016-10-03	Sid & Andy	NF	no factor TF: 74-75
2016-10-03	Sid & Andy	NF	no factor TF: 73-74
2016-09-30	RichD0	NF	no factor TF: 72-73
2016-03-09	Judge Hale	NF	no factor TF: 71-72
2013-06-18	Cow_tipping	NF	no factor TF: 70-71
2011-01-20	sannerud.com	NF	no factor TF: 69-70
2011-01-20	sannerud.com	NF	no factor TF: 68-69
2011-01-20	sannerud.com	NF	no factor TF: 67-68
2011-01-20	-anonymous-	NF	no factor TF: 66-67
2011-01-19	medikit	NF	no factor TF: 65-66
2010-12-04	Architects Cubed	NF	no factor TF: 64-65