84 880 721 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 =	665000
B2 =	11970000

Status	Date	User	Residue	Shift	Software
Unverified	2019-05-19	patgie	E3A197C3B436B6__	14956974	Windows 64-bit,Prime95,v29.8,build 3

History

Date	User	Type	Result
2019-05-19	patgie	C-LL	E3A197C3B436B6__
2019-04-27	ATH	NF	no factor TF: 63-64
2019-04-27	ATH	NF	no factor TF: 1-63
2017-12-11	Smok_bmv	NF-PM1	B1=665000, B2=11970000
2017-07-22	ktony	NF	no factor TF: 75-76
2017-07-22	ktony	NF	no factor TF: 74-75
2017-05-19	-anonymous-	NF	no factor TF: 73-74
2017-02-14	Judge Hale	NF	no factor TF: 71-72
2017-02-14	Judge Hale	NF	no factor TF: 72-73
2014-08-23	-anonymous-	NF	no factor TF: 70-71
2013-02-27	SMoffat	NF	no factor TF: 69-70
2013-02-26	Smok_bmv	NF	no factor TF: 68-69
2013-02-25	Smok_bmv	NF	no factor TF: 67-68
2013-02-25	Smok_bmv	NF	no factor TF: 66-67
2012-08-29	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-09	Architects Cubed	NF	no factor TF: 64-65