2 440 201 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
447801285511	12	38.7	old
23058657676215485839	20	64.3	2017-09-11 11:23:39

ECM

Digits	B1	Curves
25	50000	194 / 280

Estimated T-Level: 23.5 ⓘ

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

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-13	Oliver Kruse	3497310CCFB3DC92	2	1405882	5	3
Verified	PRP without proof (not generated)	2017-11-27	storm5510	3497310CCFB3DC92	2	2393900	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-27	storm5510	C-PRP	M2440201/447801285511/23058657676215485839 : 3497310CCFB3DC92
2017-10-13	Oliver Kruse	C-PRP	M2440201/447801285511/23058657676215485839 : 3497310CCFB3DC92
2017-09-11	TJAOI	F	Factor: 23058657676215485839

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