2 087 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 6 known prime factors. Cofactor is PRP (Probable-Prime).

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
561653441	9	29.1	old
7784142689	10	32.9	old
13972903680989405047308631	26	83.5	old
46569645515600223410122662599	29	95.2	old
700690973459435662005774886079	30	99.1	old
1144261721186669289407300288576366847993924905671	49	159.6	2012-05-20 10:37:01

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	No proof (small exponent)	2017-11-09	kkmrkkblmbrbk	PRP_PRP_PRP_PRP_	6	118	1	3

History

Date	User	Type	Result
2017-11-09	kkmrkkblmbrbk	P-PRP	M2087/561653441/7784142689/13972903680989405047308631/46569645515600223410122662599/700690973459435662005774886079/1144261721186669289407300288576366847993924905671 PRP Cofactor
2012-05-20	Michael Kenn	F-ECM	Factor: 1144261721186669289407300288576366847993924905671
2009-10-25	Carsten Kossendey	F	Factor: 4371990526511842849