2 574 251 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
5148503	7	22.3	old

ECM

Digits	B1	Curves
25	50000	128 / 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)	2017-10-15	Oliver Kruse	F5CF49C4AC964A70	1	1906834	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	F5CF49C4AC964A70	1	2513836	5	3

History

Date	User	Type	Result
2023-01-25	USAFSS	NF-PM1	B1=232000, B2=246888180
2019-03-18	Joss	NF-PM1	B1=100000, B2=1000000, E=6
2017-12-01	storm5510	C-PRP	M2574251/5148503 : F5CF49C4AC964A70
2017-10-15	Oliver Kruse	C-PRP	M2574251/5148503 : F5CF49C4AC964A70

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