669 479 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
2269249825730016605491289	25	80.9	2009-07-27 11:23:58

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	215 / 640

Estimated T-Level: 26.7 ⓘ

TF below 2^84 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	F14	0
Verified (Factored)		Burton A. Leland	FE52754A6D0D4F14	0
Verified (Factored)	2001-07-29	Brian J. Beesley	FE52754A6D0D4F14	374300

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-27	Oliver Kruse	913952763CAF2122	1	0	1	3
Verified	2017-10-13	Oliver Kruse	913952763CAF2122	1	491825	1	3
Verified	2017-12-16	ATH	913952763CAF2122	1	251618	1	3
Unverified (Reliable)	2020-04-20	Oliver Kruse	59F4DF583F99BD__	1	620632	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-04-20	Oliver Kruse	C-PRP	M669479/2269249825730016605491289 : 59F4DF583F99BD__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-12-16	ATH	C-PRP	M669479/2269249825730016605491289 : 913952763CAF2122 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-13	Oliver Kruse	C-PRP	M669479/2269249825730016605491289 : 913952763CAF2122 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-27	Oliver Kruse	C-PRP	M669479/2269249825730016605491289 : 913952763CAF2122 PRP: Unverified (Reliable) PRP without proof (not generated)
2009-07-27	linded	F-ECM	Factor: 2269249825730016605491289
2008-10-14	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-10-14	Sturle Sunde	NF	no factor from 2^58 to 2^59