2 353 831 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶²

Factored

Factor	Digits	Bits	Date
618341988377	12	39.2	old
4486023545328047	16	52.0	2014-07-18 11:49:14

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	123 / 640

Estimated T-Level: 26.0 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-12	Oliver Kruse	7C5434A1151A6A2F	2	0	1	3
Verified	PRP without proof (not generated)	2017-11-24	storm5510	7C5434A1151A6A2F	2	322584	1	3

History

Date	User	Type	Result
2018-04-27	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-24	storm5510	C-PRP	M2353831/618341988377/4486023545328047 : 7C5434A1151A6A2F
2017-10-12	Oliver Kruse	C-PRP	M2353831/618341988377/4486023545328047 : 7C5434A1151A6A2F
2014-07-18	-anonymous-	F	Factor: 4486023545328047

Username
Password