404 419 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
1715797755457	13	40.6	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	200 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-23	Oliver Kruse	08FD00DA8130ECBC	1	0	1	3
Verified	2017-11-02	kkmrkkblmbrbk	08FD00DA8130ECBC	1	332117	1	3
Unverified (Reliable)	2020-04-18	Oliver Kruse	1E52449C7595CC__	1	19442	5	3

P-1 factors

Date	Factor	B1	B2
2022-11-01	1715797755457	25000000	25000000

History

Date	User	Type	Result
2022-11-01	Kevin_9611	F-PM1	Factor: 1715797755457 / (P-1, B1=25000000)
2020-04-18	Oliver Kruse	C-PRP	M404419/1715797755457 : 1E52449C7595CC__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-02	kkmrkkblmbrbk	C-PRP	M404419/1715797755457 : 08FD00DA8130ECBC PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-23	Oliver Kruse	C-PRP	M404419/1715797755457 : 08FD00DA8130ECBC PRP: Unverified (Reliable) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=3000000, B2=100000000, E=12