2 636 797 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
2547145903	10	31.2	old
783547195051871	15	49.5	2014-04-30 11:29:56

ECM

Digits	B1	Curves
25	50000	134 / 280

Estimated T-Level: 22.4 ⓘ

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)	2017-10-18	Oliver Kruse	D7E5289A93BA4EB9	2	2036741	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	D7E5289A93BA4EB9	2	871552	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	M2636797/2547145903/783547195051871 : D7E5289A93BA4EB9
2017-10-18	Oliver Kruse	C-PRP	M2636797/2547145903/783547195051871 : D7E5289A93BA4EB9
2014-04-30	TJAOI	F	Factor: 783547195051871

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