1 846 231 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
2437024921	10	31.2	old
183121408936759	15	47.4	2008-08-26 20:20:08
12812983353263030626967503	26	83.4	2015-08-27 11:28:40

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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	BDCE8311960350A2	3	0	1	3
Verified	2017-11-11	kkmrkkblmbrbk	BDCE8311960350A2	3	420279	1	3

P-1 factors

Date	Factor	B1	B2
2015-08-27	12812983353263030626967503	500000	15000000

History

Date	User	Type	Result
2017-11-11	kkmrkkblmbrbk	C-PRP	M1846231/2437024921/183121408936759/12812983353263030626967503 : BDCE8311960350A2 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1846231/2437024921/183121408936759/12812983353263030626967503 : BDCE8311960350A2 PRP: Verified PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1846231/2437024921/183121408936759/12812983353263030626967503 : BDCE8311960350A2 PRP without proof (not generated)
2015-08-27	alpertron	F-PM1	Factor: 12812983353263030626967503 / (P-1, B1=500000, B2=15000000, E=12)
2008-08-26	-Anonymous-	F	Factor: 183121408936759