That's known as the least common multiple, or LCM. It's the smallest number that all the members of a given set of whole numbers will divide into evenly with no remainder.
50
180
72
90
It is 6
It is: 21
The Least Common Multiple (LCM) for 32 45 is 1,440
The Least Common Multiple (LCM) for 13 17 is 221.
The Least Common Multiple (LCM) for 20 55 is 220.
252
The LCM is 16.
10