240 480 720 960 1,200 1,440 1,680 1,920 2,160 2,400
and so on ...
15 and 16 are both composite numbers
15 and 5 both go into every multiple of 15 .
x + 16 < 15 x + 16 - 16 < 15 - 16 x < -1
16 and 13 both go into any multiple of 208 .
16/15 = 1.066... ≈ 1.1
Both 15 and 20 can go into 60, as they are both factors of that number.
240 ÷ 16 = 15
They both go into 90.
63 ÷ 16 = 3 with remainder 15
11 and 15 both go into 165. 165 is the LCM (Least Common Multiple) of 11 and 15.
15 divided by 16 equals 0.9375
It was 16 for a very long time, but now you have to be 15.