2 624 939 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
168905170124359	15	47.3	old
622801342946753	15	49.1	2014-04-23 10:43:42

ECM

Digits	B1	Curves
25	50000	119 / 280

Estimated T-Level: 22.1 ⓘ

TF below 2^68 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)	2017-10-17	Oliver Kruse	2CD634CBEC7A2B5D	2	1495957	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	2CD634CBEC7A2B5D	2	2624413	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	storm5510	C-PRP	M2624939/168905170124359/622801342946753 : 2CD634CBEC7A2B5D
2017-10-17	Oliver Kruse	C-PRP	M2624939/168905170124359/622801342946753 : 2CD634CBEC7A2B5D
2014-04-23	TJAOI	F	Factor: 622801342946753

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