2 700 449 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
2717899969696510439	19	61.2	2012-05-01 21:40:01

ECM

Digits	B1	Curves
25	50000	61 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Linton	ABB33EF3DEBC99DF	0
Verified (Factored)	1999-04-23	Michiel van Loon	ABB33EF3DEBC99DF	1414071

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-19	Oliver Kruse	27B96D9D8B41D67A	1	1497960	5	3
Verified	2017-12-04	kkmrkkblmbrbk	27B96D9D8B41D67A	1	2283205	5	3

History

Date	User	Type	Result
2023-02-24	USAFSS	NF-PM1	B1=360000, B2=287380170
2017-12-04	kkmrkkblmbrbk	C-PRP	M2700449/2717899969696510439 : 27B96D9D8B41D67A PRP: Verified PRP without proof (not generated)
2017-10-19	Oliver Kruse	C-PRP	M2700449/2717899969696510439 : 27B96D9D8B41D67A PRP: Verified PRP without proof (not generated)
2012-05-01	Grant McCracken	F	Factor: 2717899969696510439
2011-03-14	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-28	Matteo2D	NF-PM1	B1=50000, B2=800000, E=6
2011-01-16	Joss	NF-PM1	B1=50000
2011-01-15	Matteo2D	NF-PM1	B1=30000, B2=435000
2010-12-26	Joss	NF-PM1	B1=30000
2010-12-16	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61