no.
Yes, it does; 625 times. It is counterintuitive, isn't it?
no
Not evenly.
not evenly
No. 68 is not evenly divisible by 15.
Any multiple of 15.
No. 663 is not evenly divisible by 15.
No. 15 is not evenly divisible by 12.
No. 40 is not evenly divisible by 15.
No. 80 is not evenly divisible by 15.
75 can be evenly divided by 1, 3, 5, 15, 25, and 75. 15 can be evenly divided by 1, 3, 5, and 15.
Yes, 15 times 7 equals exactly 105. So 15 will go into 105 evenly.