2 139 091 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
8703328606681833919	19	62.9	2009-01-03 21:05:04

ECM

Digits	B1	Curves
25	50000	113 / 280

Estimated T-Level: 22.0 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Friberg	E5F684C803108FDD	0
Verified (Factored)	1999-06-26	Peter Horner	E5F684C803108FDD	718808

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-08	Oliver Kruse	9EA6C37ECE45534D	1	0	1	3
Verified	2017-11-18	kkmrkkblmbrbk	9EA6C37ECE45534D	1	2071435	1	3

History

Date	User	Type	Result
2017-11-18	kkmrkkblmbrbk	C-PRP	M2139091/8703328606681833919 : 9EA6C37ECE45534D PRP: Verified PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2139091/8703328606681833919 : 9EA6C37ECE45534D PRP: Verified PRP without proof (not generated)
2016-03-27	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-01-03	Luigi Morelli	F-ECM	Factor: 8703328606681833919