89 100 701 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime

TF

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	725000
B2 =	14318750

Status	Date	User	Residue	Shift
Unverified	2020-01-16	Axet Nord	4D821E3D8E9A1A__	75641634

History

Date	User	Type	Result
2020-01-16	Axet Nord	C-LL	4D821E3D8E9A1A__
2018-11-04	Oliver Kruse	NF-PM1	B1=725000, B2=14318750, E=12
2018-10-01	tServo	NF	no factor from 2^75 to 2^76
2018-10-01	tServo	NF	no factor from 2^74 to 2^75
2017-08-25	-Anonymous-	NF	no factor from 2^73 to 2^74
2017-08-25	-Anonymous-	NF	no factor from 2^72 to 2^73
2017-06-19	monst	NF	no factor from 2^71 to 2^72
2013-12-06	RMAC9.5	NF	no factor to 2^71
2013-08-29	Norman Ley	NF	no factor from 2^66 to 2^67
2013-06-25	David Campeau	NF	no factor from 2^65 to 2^66
2010-11-06	Architects Cubed	NF	no factor from 2^64 to 2^65