80 671 537 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 =	12487500

Status	Date	User	Residue	Shift	Software
Unverified	2018-09-03	curtisc	B436137FE42ABF__	35538820	Windows Service,Prime95,v28.7,build 1

History

Date	User	Type	Result
2025-10-24	Kyle Askine	NF	no factor TF: 75-76
2018-09-03	curtisc	C-LL	B436137FE42ABF__
2017-02-13	Smok_bmv	NF-PM1	B1=675000, B2=12487500
2016-10-27	-anonymous-	NF	no factor TF: 74-75
2016-10-27	-anonymous-	NF	no factor TF: 73-74
2016-10-27	-anonymous-	NF	no factor TF: 72-73
2014-02-10	NR	NF	no factor TF: 71-72
2014-02-10	NR	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
2011-08-09	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-10	Architects Cubed	NF	no factor TF: 64-65