2 627 759 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
63066217	8	25.9	old
1898874858747471721	19	60.7	2016-03-01 12:08:05

ECM

Digits	B1	Curves
25	50000	127 / 280

Estimated T-Level: 22.3 ⓘ

TF below 2^69 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	E805D59C5A4897D8	2	2169339	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	E805D59C5A4897D8	2	1669797	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	M2627759/63066217/1898874858747471721 : E805D59C5A4897D8
2017-10-17	Oliver Kruse	C-PRP	M2627759/63066217/1898874858747471721 : E805D59C5A4897D8
2016-03-01	TJAOI	F	Factor: 1898874858747471721

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