2 488 019 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
4976039	7	22.2	old
403059079	9	28.6	2008-07-14 20:24:16

ECM

Digits	B1	Curves
25	50000	175 / 280

Estimated T-Level: 23.1 ⓘ

TF below 2^72 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)	2017-10-14	Oliver Kruse	7A6C687073F000AC	2	1172791	5	3
Verified	PRP without proof (not generated)	2017-11-29	storm5510	7A6C687073F000AC	2	1060977	5	3

History

Date	User	Type	Result
2022-08-19	USAFSS	NF-PM1	B1=224000, B2=203668920
2017-11-29	storm5510	C-PRP	M2488019/4976039/403059079 : 7A6C687073F000AC
2017-10-14	Oliver Kruse	C-PRP	M2488019/4976039/403059079 : 7A6C687073F000AC
2008-07-14	George Woltman	F-ECM	Factor: 403059079

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