1 327 577 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
8602698961	10	33.0	old
1829501390546449364679877223	28	90.6	2018-07-27 12:43:40

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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 (Factored)	2017-09-30	Oliver Kruse	446D95E05DABCF7E	1	0	1	3
Verified (Factored)	2017-10-23	kkmrkkblmbrbk	446D95E05DABCF7E	1	708559	1	3
Verified	2018-07-28	_p95holder_	6241F23BB4214C15	2	365428	5	3
Verified	2018-07-29	kkmrkkblmbrbk	6241F23BB4214C15	2	1003875	5	3

History

Date	User	Type	Result
2018-07-29	kkmrkkblmbrbk	C-PRP	M1327577/8602698961/1829501390546449364679877223 : 6241F23BB4214C15 PRP: Verified PRP without proof (not generated)
2018-07-28	_p95holder_	C-PRP	M1327577/8602698961/1829501390546449364679877223 : 6241F23BB4214C15 PRP: Verified PRP without proof (not generated)
2018-07-27	TJAOI	F-ECM	Factor: 1829501390546449364679877223 / (ECM curve 55, B1=50000, B2=5000000)
2017-10-23	kkmrkkblmbrbk	C-PRP	M1327577/8602698961 : 446D95E05DABCF7E PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1327577/8602698961 : 446D95E05DABCF7E PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12