45 411 427 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
382172546761634642915689	24	78.3	2012-12-17 19:11:45

Status	Date	User	Residue	Shift
Verified (Factored)	2009-08-09	curtisc	87ABDE5B83AE9BE0	13819399

P-1 factors

Date	Factor	B1	B2
2012-12-17	382172546761634642915689	540000	11745000

History

Date	User	Type	Result
2024-05-12	James Heinrich	NF	no factor from 2^68 to 2^69
2012-12-17	David Campeau	F-PM1	Factor: 382172546761634642915689
2012-10-25	David Campeau	NF	no factor from 2^70 to 2^71
2012-07-12	Carsten Kossendey	NF	no factor from 2^69 to 2^70
2011-10-01	Carsten Kossendey	NF	no factor from 2^68 to 2^69
2009-08-09	curtisc	C-LL	87ABDE5B83AE9BE0