There are 7 of them as 9 x 7 = 63.
5
Nine of them
as in the multiples? 9 18 27 36 45 54 63 72 81 90 99 ...
The pattern is: 9, 18, 27, 36, 45, 54, 63, 72, 81, and 108.
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108
79
10 times
Eleven.
Exactly 6 of them
24 of them with a remainder of 2
The GCF of 9s and 63s^3 is 9s.
20