The common factors are 1, 3 and 9.
5.
There are 45 such numbers.
The numbers which are divisible by 9 between 1 - 60 are 9, 18, 27, 36, 45, 54.
90/2 = 45 180/4 = 45 and infinitely many more.
The numbers that go into 45 are 1, 3, 5, 9, 15, and 45.
9,5
1,3,5,9,15,45
They are: 1 and 9
1 and 5.
3 and 5
1, 3, 5, 9, 15, 45.
1, 3, 5, 9, 15, 45
Evenly, the numbers 5 and 9 can "go into" the number 45.
Six: 1 3 5 9 15 45.
45
The LCM of both numbers is 720