2 444 833 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
62950710241441252943	20	65.8	2019-04-30 12:21:14
73946013240127239919	20	66.0	2010-03-10 08:34:47

ECM

Digits	B1	Curves
25	50000	197 / 280

Estimated T-Level: 23.5 ⓘ

TF below 2^73 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Marc Honey	E009E7DE2C39D851	0
Verified (Factored)		Scott Morgan	E009E7DE2C39D851	0
Verified (Factored)	1999-03-26	Bert Radke	E009E7DE2C39D851	1684056

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-14	kkmrkkblmbrbk	334D33945043543F	1	2085624	5	3
Verified (Factored)	2017-11-04	Oliver Kruse	334D33945043543F	1	1853283	5	3
Verified	2019-05-01	Chang Chia-Tche	334D33945043543F	2	41142	5	3

History

Date	User	Type	Result
2022-03-10	LordJulius	NF	no factor from 2^64 to 2^65
2022-03-10	LordJulius	NF	no factor from 2^63 to 2^64
2022-03-10	LordJulius	NF	no factor from 2^62 to 2^63
2022-03-10	LordJulius	NF	no factor from 2^61 to 2^62
2022-03-10	LordJulius	NF	no factor from 2^1 to 2^60
2019-05-01	Chang Chia-Tche	C-PRP	M2444833/73946013240127239919/62950710241441252943 : 334D33945043543F PRP: Verified PRP without proof (not generated)
2019-04-30	TJAOI	F	Factor: 62950710241441252943 / TF: 65-66
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-04	Oliver Kruse	C-PRP	M2444833/73946013240127239919 : 334D33945043543F PRP: Verified PRP without proof (not generated)
2017-10-14	kkmrkkblmbrbk	C-PRP	M2444833/73946013240127239919 : 334D33945043543F PRP: Verified PRP without proof (not generated)
2010-03-10	SubPrime	F-ECM	Factor: 73946013240127239919
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61