5k
With appropriate training, you may be able to run a 15K.
The greatest common factor of 18k and 15k is 3k.
It means kilo which is 1000 and 15k is 15*1000 = 15000
15,000
15k simply means 15,000, 15Kbps would be 15,000 bits per second
Therefore 15k is 15 times 3 = 45
$15K
15000 ...
9.3 miles
A 15k marathon is just 15 kilometers, or roughly 9.3 miles.
10k = 6.21 miles 15k = 9.32 miles 20k = 12.43 miles