1 122 623 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
2245247	7	21.1	old
348538625149452583	18	58.3	2014-12-27 22:28:12
4887110313038087949151	22	72.0	2014-12-27 22:28:12

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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	C3BC74D7714B360B	3	0	1	3
Verified	2017-10-16	Oliver Kruse	C3BC74D7714B360B	3	167031	1	3
Verified	2018-01-02	ATH	C3BC74D7714B360B	3	990933	1	3

P-1 factors

Date	Factor	B1	B2
2014-12-27	348538625149452583	300000	10000000
2014-12-27	4887110313038087949151	300000	10000000

History

Date	User	Type	Result
2018-01-02	ATH	C-PRP	M1122623/2245247/348538625149452583/4887110313038087949151 : C3BC74D7714B360B PRP: Verified PRP without proof (not generated)
2017-10-16	Oliver Kruse	C-PRP	M1122623/2245247/348538625149452583/4887110313038087949151 : C3BC74D7714B360B PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1122623/2245247/348538625149452583/4887110313038087949151 : C3BC74D7714B360B PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1122623/2245247/348538625149452583/4887110313038087949151 : C3BC74D7714B360B PRP without proof (not generated)
2014-12-27	alpertron	F-PM1	Factor: 1703346709460006006115640278756789607033 / (P-1, B1=300000, B2=10000000, E=12)