5 698 607 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
9906451681081561871	19	63.1	2014-11-04 00:15:14

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-10-15	Duraid Madina	5EF35D6A4997C707	2963896
Verified (Factored)	2000-10-15	Jean Penné	5EF35D6A4997C707	200348

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-12-16	Oliver Kruse	A015CF356F0DCA9E	1	5359267	5	3
Verified	2018-04-15	kkmrkkblmbrbk	A015CF356F0DCA9E	1	1070629	5	3

History

Date	User	Type	Result
2018-04-15	kkmrkkblmbrbk	C-PRP	M5698607/9906451681081561871 : A015CF356F0DCA9E PRP: Verified PRP without proof (not generated)
2017-12-16	Oliver Kruse	C-PRP	M5698607/9906451681081561871 : A015CF356F0DCA9E PRP: Verified PRP without proof (not generated)
2014-11-04	mikr	F	Factor: 9906451681081561871 / TF: 63-64
2011-02-06	USAFSS	NF-PM1	B1=65000, B2=1088750, E=6
2009-04-06	GrunwalderGIMP	NF	no factor from 2^62 to 2^63