85 510 427 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	403000
B2 =	61745250

Status	Date	User	Residue	Shift	Software
Unverified	2018-02-28	Avery T. Carr	517E0D9161ACDD__	65113070	Windows 64-bit,Prime95,v29.3,build 1

History

Date	User	Type	Result
2023-03-09	Mark Rose	NF-PM1	B1=403000, B2=61745250
2018-02-28	Avery T. Carr	C-LL	517E0D9161ACDD__
2018-02-05	Yxinity	NF-PM1	B1=780000
2017-09-17	TheJudger	NF	no factor TF: 74-75
2017-09-17	TheJudger	NF	no factor TF: 75-76
2017-04-23	-anonymous-	NF	no factor TF: 73-74
2017-02-21	Judge Hale	NF	no factor TF: 72-73
2017-02-21	Judge Hale	NF	no factor TF: 71-72
2014-03-15	SMoffat	NF	no factor TF: 70-71
2013-08-19	-anonymous-	NF	no factor TF: 69-70
2013-08-18	Robish	NF	no factor TF: 68-69
2013-08-16	Robish	NF	no factor TF: 67-68
2013-06-17	Lukin Dmitry	NF	no factor TF: 66-67
2013-02-28	wangyun183	NF	no factor TF: 65-66
2010-11-26	Architects Cubed	NF	no factor TF: 64-65