85 585 673 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 =	403000
B2 =	61745250

Status	Date	User	Residue	Shift	Software
Verified	2019-08-10	patgie	1B963FACFB364B10	35226102	Windows 64-bit,Prime95,v29.8,build 3
Verified	2024-12-15	-anonymous-	1B963FACFB364B10	35499358	Windows 64-bit,Prime95,v30.19,build 20

History

Date	User	Type	Result
2024-12-15	-anonymous-	C-LL	1B963FACFB364B10
2023-03-09	Mark Rose	NF-PM1	B1=403000, B2=61745250
2019-08-10	patgie	C-LL	1B963FACFB364B10
2019-04-28	ATH	NF	no factor TF: 1-63
2019-04-28	ATH	NF	no factor TF: 63-64
2018-05-21	Yxinity	NF-PM1	B1=780000
2017-09-24	TheJudger	NF	no factor TF: 75-76
2017-09-20	Brian Beuning	NF	no factor TF: 74-75
2017-04-20	-anonymous-	NF	no factor TF: 73-74
2017-03-08	Strolling Jellyfish	NF	no factor TF: 72-73
2014-11-16	Ilya Alexandrov	NF	no factor TF: 71-72
2014-11-16	Ilya Alexandrov	NF	no factor TF: 70-71
2013-10-20	SMoffat	NF	no factor TF: 69-70
2013-10-15	SMoffat	NF	no factor TF: 68-69
2013-03-05	SMoffat	NF	no factor TF: 67-68
2013-03-05	SMoffat	NF	no factor TF: 66-67
2013-03-04	wangyun183	NF	no factor TF: 65-66
2010-11-27	Architects Cubed	NF	no factor TF: 64-65