2 501 449 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
1593798230351	13	40.5	old
2015679012488413729	19	60.8	2016-03-07 12:48:32

ECM

Digits	B1	Curves
25	50000	170 / 280

Estimated T-Level: 23.0 ⓘ

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	3CC172F0EB4BD15C	2	1319889	5	3
Verified	PRP without proof (not generated)	2017-11-30	storm5510	3CC172F0EB4BD15C	2	186156	5	3

History

Date	User	Type	Result
2022-08-19	USAFSS	NF-PM1	B1=240000, B2=200595780
2022-03-10	LordJulius	NF	no factor TF: 66-67
2022-03-10	LordJulius	NF	no factor TF: 64-65
2022-03-10	LordJulius	NF	no factor TF: 65-66
2022-03-10	LordJulius	NF	no factor TF: 61-62
2022-03-10	LordJulius	NF	no factor TF: 62-63
2022-03-10	LordJulius	NF	no factor TF: 63-64
2021-12-15	ANONYMOUS	NF	no factor TF: 67-68
2017-11-30	storm5510	C-PRP	M2501449/1593798230351/2015679012488413729 : 3CC172F0EB4BD15C
2017-10-14	Oliver Kruse	C-PRP	M2501449/1593798230351/2015679012488413729 : 3CC172F0EB4BD15C
2016-03-07	TJAOI	F	Factor: 2015679012488413729