2 360 843 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
4721687	7	22.2	old
171788143235743	15	47.3	2008-09-07 10:05:35

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	117 / 640

Estimated T-Level: 25.9 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-13	Oliver Kruse	438817676DDA3914	2	769959	5	3
Verified	PRP without proof (not generated)	2017-11-24	storm5510	438817676DDA3914	2	1614215	5	3

History

Date	User	Type	Result
2018-04-27	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-24	storm5510	C-PRP	M2360843/4721687/171788143235743 : 438817676DDA3914
2017-10-13	Oliver Kruse	C-PRP	M2360843/4721687/171788143235743 : 438817676DDA3914
2008-09-07	Will Edgington	F	Factor: 171788143235743

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