80 686 721 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 =	675000
B2 =	12318750

Status	Date	User	Residue	Shift	Software
Unverified	2018-04-22	patgie	A90286818D81C5__	34267830	Windows 64-bit,Prime95,v29.4,build 5

History

Date	User	Type	Result
2025-10-29	Kyle Askine	NF	no factor TF: 75-76
2018-04-22	patgie	C-LL	A90286818D81C5__
2017-02-22	DeadKings	NF-PM1	B1=675000, B2=12318750
2016-08-24	Judge Hale	NF	no factor TF: 74-75
2016-08-24	Judge Hale	NF	no factor TF: 73-74
2016-08-24	Judge Hale	NF	no factor TF: 72-73
2016-08-24	Judge Hale	NF	no factor TF: 71-72
2013-06-05	SMoffat	NF	no factor TF: 70-71
2013-02-02	Bold_Seeker	NF	no factor TF: 69-70
2013-01-30	Bold_Seeker	NF	no factor TF: 68-69
2013-01-28	Bold_Seeker	NF	no factor TF: 67-68
2013-01-26	phoenicis	NF	no factor TF: 66-67
2011-01-27	-anonymous-	NF	no factor TF: 65-66
2010-12-09	Architects Cubed	NF	no factor TF: 64-65