7 972 339 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
46617069068035914281	20	65.3	2012-06-26 06:10:08

ECM

Digits	B1	Curves
25	50000	16 / 280

Estimated T-Level: 20.3 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-10-29	roger	553E5460F467272B	7104778
Verified (Factored)	2003-06-30	Jörg Thomsen	553E5460F467272B	5167543

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-06-22	axn	5FE375B143059BEF	1	883231	5	3
Verified	2019-12-15	GAN	5FE375B143059BEF	1	6819394	5	3

History

Date	User	Type	Result
2021-05-12	firejuggler	NF-PP1	Start=6/5, B1=500000, B2=26500000
2021-04-30	firejuggler	NF-PP1	Start=2/7, B1=500000, B2=26500000
2019-12-15	GAN	C-PRP	M7972339/46617069068035914281 : 5FE375B143059BEF PRP: Verified PRP without proof (not generated)
2018-06-22	axn	C-PRP	M7972339/46617069068035914281 : 5FE375B143059BEF PRP: Verified PRP without proof (not generated)
2012-06-26	firejuggler	F-PM1	Factor: 46617069068035914281