30 and 60
Five common factors.
1. That is to say, they have no prime factors in common.
10/24 and 9/24
first three common factors of 3,4,5
Since 5 is a factor of 15, all of its factors are common.
There are three of them with exactly five factors.
Sorry, only two common factors! The common factors are: 1, 3
Three factors in common.
It is five.
Just 1.
Nine has three factors.