2 498 701 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
1005776768061351943	19	59.8	old

ECM

Digits	B1	Curves
25	50000	130 / 280

Estimated T-Level: 22.3 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Factored		Kees Hoogakker	B458E713A917D406	0	Windows,Prime95,v14,(aka WQ1)
Factored	1999-05-09	Marc Getty / Phil Fizur	B458E713A917D406	932362	Windows,Prime95,v17,(aka WT1)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-14	Oliver Kruse	D22A0BE44B80A01A	1	1406354	5	3
Verified	PRP without proof (not generated)	2017-11-30	storm5510	D22A0BE44B80A01A	1	126918	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-30	storm5510	C-PRP	M2498701/1005776768061351943 : D22A0BE44B80A01A
2017-10-14	Oliver Kruse	C-PRP	M2498701/1005776768061351943 : D22A0BE44B80A01A
2003-10-31	Team Prime Rib	NF-PM1	B1=15000, B2=228750
2003-10-23	-anonymous-	NF-PM1	B1=2048, B2=204800
1999-05-09	-anonymous-	C-LL	B458E713A917D406
1999-05-02	-anonymous-	NF	no factor TF: 1-59