The lowest common multiple is 18. The first four common multiples are thus the first four multiples of 18 and are: 18, 36, 54 and 72.
Since 18 is a factor of 72, all of its factors are common.
The common factors are: 1, 3, 9
The factors of 35 are 1, 5, 7, and 35 The factors of 55 are 1, 5, 11, and 55 The common factors of 35 and 72 are 1 and 5
The common factors are: 1, 2, 3, 6.
36, 72, 108, 144.
The common factors are: 1, 2, 3, 4, 6, 9, 12, 18, 36.
The common factors of 72 and 123 are: 1 and 3
The common factors of 72 and 86 are: 1 and 2
Common factors of 81 and 72 are: 1, 3, and 9.
Since 12 is a factor of 72, all of its factors are common.
The common factors of 72 and 81 are: 1, 3, and 9
The common factors of 72 and 99 are 1, 3, and 9
1,2,3,4,6,8,9,12,18,24,36 and 72
There are no common factors of 72 because there cannot be common factors without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The prime factors of 72 are 2, 2, 2, 3, and 3.
The common factors of 16 and 72 are 1, 2, 4, 8
They are: 36, 72, 108.