4 096 523 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
3908082943	10	31.9	old
221462785346681	15	47.7	2014-03-12 11:17:19
634412140389161177	18	59.1	2015-10-28 12:41:40

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-13	kkmrkkblmbrbk	D1CDBC36DEE7576C	3	2654779	5	3
Verified	2018-01-11	Oliver Kruse	D1CDBC36DEE7576C	3	896023	5	3

History

Date	User	Type	Result
2022-10-16	USAFSS	NF-PM1	B1=200000, B2=135233670
2018-01-11	Oliver Kruse	C-PRP	M4096523/3908082943/221462785346681/634412140389161177 : D1CDBC36DEE7576C PRP: Verified PRP without proof (not generated)
2017-11-13	kkmrkkblmbrbk	C-PRP	M4096523/3908082943/221462785346681/634412140389161177 : D1CDBC36DEE7576C PRP: Verified PRP without proof (not generated)
2015-10-28	TJAOI	F	Factor: 634412140389161177 / TF: 59-60
2014-03-12	TJAOI	F	Factor: 221462785346681