7 783 879 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
17311795215977566388687	23	73.9	2013-01-10 04:03:09

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	2000-07-03	Christoph Freundl	12D9DA01FB2E4B81	5541671
Verified (Factored)	2002-06-09	Stephen Wood	12D9DA01FB2E4B81	3691668

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-05-17	_p95holder_	A8A2D3EF8F533088	1	739389	5	3
Verified	2019-10-01	marssystems	A8A2D3EF8F533088	1	1877582	5	3

History

Date	User	Type	Result
2019-10-01	marssystems	C-PRP	M7783879/17311795215977566388687 : A8A2D3EF8F533088 PRP: Verified PRP without proof (not generated)
2018-05-17	_p95holder_	C-PRP	M7783879/17311795215977566388687 : A8A2D3EF8F533088 PRP: Verified PRP without proof (not generated)
2013-01-10	Florimond C.	F-ECM	Factor: 17311795215977566388687
2012-09-29	Nesowa	NF-PM1	B1=95000, B2=1876250, E=6
2012-05-27	Oscar Östlin	NF-PM1	B1=65000, B2=1056250, E=6