27 294 173 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 2⁷⁰

P-1

B1 =	290000
B2 =	3190000

Status	Date	User	Residue	Shift	Software
Verified	2005-04-26	Aaron Zod	7E81D7D595477C4E	1601061	Windows,Prime95,v23,NT service,(aka WZ5)
Verified	2011-07-17	Reed_Young	7E81D7D595477C4E	13269997	Linux 64-bit,Prime95,v25.9,build 4

History

Date	User	Type	Result
2021-10-11	TheJudger	NF	no factor TF: 74-75
2021-09-12	TheJudger	NF	no factor TF: 73-74
2021-08-25	TheJudger	NF	no factor TF: 72-73
2021-08-22	TheJudger	NF	no factor TF: 71-72
2021-02-28	mikr	NF	no factor TF: 70-71
2018-09-25	ramgeis	NF	no factor TF: 69-70
2018-04-09	VictordeHollander	NF	no factor TF: 68-69
2016-01-25	NR	NF	no factor TF: 67-68
2011-07-17	Reed_Young	C-LL	7E81D7D595477C4E
2005-04-26	-anonymous-	C-LL	7E81D7D595477C4E
2005-04-11	-anonymous-	NF-PM1	B1=290000, B2=3190000
2004-10-18	-anonymous-	NF	no factor TF: 1-67
2004-07-02	1997rj7	NF	no factor TF: 1-62
2004-04-09	-anonymous-	NF	no factor TF: 1-61
2001-08-18	Net_Force	NF	no factor TF: 1-56
2000-11-05	Joss	NF	no factor TF: 1-54