72 823 253 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	625000
B2 =	12500000

Status	Date	User	Residue	Shift
Unverified	2017-06-01	basey	1F3917C88E6363__	30372712

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2024-01-30	Massimo Cappelli (ik5pwa)	LL double-check	LL	64.08 %	2024-04-26

History

Date	User	Type	Result
2017-06-01	basey	C-LL	1F3917C88E6363__
2015-01-08	Kyle Askine	NF-PM1	B1=625000, B2=12500000, E=6
2015-01-06	kdgehman	NF	no factor from 2^74 to 2^75
2015-01-06	kdgehman	NF	no factor from 2^73 to 2^74
2015-01-06	kdgehman	NF	no factor from 2^72 to 2^73
2015-01-06	kdgehman	NF	no factor from 2^71 to 2^72
2014-06-27	Mark Rose	NF	no factor from 2^70 to 2^71
2012-10-18	-Anonymous-	NF	no factor from 2^69 to 2^70
2010-06-04	unconnected	NF	no factor from 2^68 to 2^69
2010-06-01	unconnected	NF	no factor from 2^67 to 2^68
2010-05-30	unconnected	NF	no factor from 2^66 to 2^67
2010-05-28	k1p5t3r	NF	no factor from 2^65 to 2^66
2010-05-22	E.Lechner	NF	no factor from 2^64 to 2^65
2008-09-19	Wojciech Florek	NF	no factor to 2^64