1 713 121 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
27409937	8	24.7	old
82229809	8	26.3	2008-07-15 07:45:40
543176081970940335043439	24	78.8	2015-06-01 11:22:59

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

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

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-05	Oliver Kruse	9B6622CD18ACCAF4	3	0	1	3
Verified	2017-11-10	kkmrkkblmbrbk	9B6622CD18ACCAF4	3	658787	1	3

P-1 factors

Date	Factor	B1	B2
2015-06-01	543176081970940335043439	500000	15000000

History

Date	User	Type	Result
2017-11-10	kkmrkkblmbrbk	C-PRP	M1713121/27409937/82229809/543176081970940335043439 : 9B6622CD18ACCAF4 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1713121/27409937/82229809/543176081970940335043439 : 9B6622CD18ACCAF4 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1713121/27409937/82229809/543176081970940335043439 : 9B6622CD18ACCAF4 PRP without proof (not generated)
2015-06-01	alpertron	F-PM1	Factor: 543176081970940335043439 / (P-1, B1=500000, B2=15000000, E=12)
2008-07-15	J Feitsma	F	Factor: 82229809