Question

How do you write the least common multiple of 10, 20, and 2?

Answer 1

`LCM(2,10,20)=20`

Explanation:

`"multiples of "2:{2,4,6,8,10,12,14,16,18,20,22,24,26,...}`

`"multiples of "10:{10,20,30,40,...}`

`"multiples of "20:{20,40,60,...}`

`"common multiples: "{20,40,60,...}`

`LCM(2,10,20)=20`