2 574 839 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
5149679	7	22.3	old

ECM

Digits	B1	Curves
25	50000	141 / 280

Estimated T-Level: 22.5 ⓘ

TF below 2^70 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	B85B8A0D106043DE	1	68487	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	B85B8A0D106043DE	1	1466921	5	3

History

Date	User	Type	Result
2023-01-25	USAFSS	NF-PM1	B1=232000, B2=246845610
2019-03-18	Joss	NF-PM1	B1=100000, B2=1000000, E=6
2017-12-01	storm5510	C-PRP	M2574839/5149679 : B85B8A0D106043DE
2017-10-15	Oliver Kruse	C-PRP	M2574839/5149679 : B85B8A0D106043DE

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