77 346 223 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 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	640000
B2 =	11840000

Status	Date	User	Residue	Shift	Software
Verified	2017-07-15	realll77	68CFDAEC70FFDFE0	71567902	Windows 64-bit,Prime95,v28.7,build 1
Verified	2023-02-11	Reed_Young	68CFDAEC70FFDFE0	16483496	Linux 64-bit,Prime95,v30.8,build 18

History

Date	User	Type	Result
2023-02-11	Reed_Young	C-LL	68CFDAEC70FFDFE0
2017-07-15	realll77	C-LL	68CFDAEC70FFDFE0
2016-04-03	Mark Rose	NF	no factor TF: 61-64
2016-02-26	Smok_bmv	NF-PM1	B1=640000, B2=11840000
2016-02-18	AirSquirrels	NF	no factor TF: 74-75
2016-02-18	AirSquirrels	NF	no factor TF: 73-74
2016-02-18	AirSquirrels	NF	no factor TF: 72-73
2015-06-13	Chuck	NF	no factor TF: 71-72
2013-01-02	SWL551	NF	no factor TF: 70-71
2011-02-18	S36049	NF	no factor TF: 69-70
2011-02-14	S36049	NF	no factor TF: 68-69
2011-02-08	Corey Bonsall	NF	no factor TF: 67-68
2011-02-03	-anonymous-	NF	no factor TF: 66-67
2011-01-31	H_Reid	NF	no factor TF: 65-66
2011-01-30	GrunwalderGIMP	NF	no factor TF: 64-65
2003-12-02	-anonymous-	NF	no factor TF: 1-61
2000-08-17	-anonymous-	NF	no factor TF: 1-53