2 567 449 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
35287019057	11	35.0	old
16697532943951	14	43.9	2008-09-30 14:37:13

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)	2017-10-15	Oliver Kruse	140E038FC500A580	2	1165123	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	140E038FC500A580	2	1884061	5	3

History

Date	User	Type	Result
2022-08-30	USAFSS	NF-PM1	B1=480000, B2=423235890
2017-12-01	storm5510	C-PRP	M2567449/35287019057/16697532943951 : 140E038FC500A580
2017-10-15	Oliver Kruse	C-PRP	M2567449/35287019057/16697532943951 : 140E038FC500A580
2008-09-30	markr	F	Factor: 16697532943951

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