2 062 493 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
115499609	9	26.8	old
247695666194442623	18	57.8	2015-07-16 11:19:16
64946930905445944703	20	65.8	2019-05-21 13:32:45

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	162 / 640

Estimated T-Level: 26.3 ⓘ

TF below 2^82 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	1447C4467E6BBEF2	2	0	1	3
Verified (Factored)	2017-11-16	kkmrkkblmbrbk	1447C4467E6BBEF2	2	53955	1	3
Verified	2019-05-21	ATH	722EB21F35A9A10A	3	1949750	5	3
Verified	2019-05-22	marssystems	722EB21F35A9A10A	3	1799038	5	3
Verified	2022-03-12	_p95holder_	722EB21F35A9A10A	3	792318	5	3

History

Date	User	Type	Result
2022-03-12	Massimo Cappelli (ik5pwa)	CERT	PRP Certification Proof certified good
2022-03-12	_p95holder_	C-PRP	M2062493/115499609/247695666194442623/64946930905445944703 : 722EB21F35A9A10A PRP proof power = 7 PRP: Verified Proof certified good
2022-03-09	LordJulius	NF	no factor from 2^64 to 2^65
2022-03-09	LordJulius	NF	no factor from 2^63 to 2^64
2022-03-09	LordJulius	NF	no factor from 2^62 to 2^63
2019-05-22	marssystems	C-PRP	M2062493/115499609/247695666194442623/64946930905445944703 : 722EB21F35A9A10A PRP: Verified PRP without proof (not generated)
2019-05-21	ATH	C-PRP	M2062493/115499609/247695666194442623/64946930905445944703 : 722EB21F35A9A10A PRP: Verified PRP without proof (not generated)
2019-05-21	TJAOI	F	Factor: 64946930905445944703 / TF: 65-66
2017-11-16	kkmrkkblmbrbk	C-PRP	M2062493/115499609/247695666194442623 : 1447C4467E6BBEF2 PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2062493/115499609/247695666194442623 : 1447C4467E6BBEF2 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-07-16	TJAOI	F	Factor: 247695666194442623 / TF: 57-58