What are the common factors of the numbers 18 and 36?

Answer 1

The common factors of 18 and 36 are the numbers that can evenly divide both 18 and 36 without leaving a remainder. The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. Therefore, the common factors of 18 and 36 are 1, 2, 3, 6, 9, and 18.

Answer 2

The factors of 18 are 1, 2, 3, 6, 9, and 18.

The factors of 36 are 1, 2, 3, 6, 9, 18, and 36.

Their common factors are 1, 2, 3, 6, 9, and 18.

Their greatest common factor is 18 .

Answer 3

To answer this question you first need to isolate the prime factors in each number. In this case the numbers are 36 and 18 so the prime factors are:

18 = 2x3x3

36 = 2x2x3x3

The next step is to identify any unique factors. In this case, the only prime factor 36 has which 18 doesn't is a second 2. Thus any combination of the prime factors of 36 which includes both 2s will not be a factor of 18. These numbers are 4, 12 and 36.

Answer 4

The factors of 18 are: 1, 2, 3, 6, 9, 18

The factors of 36 are :1, 2, 3, 4, 6, 9, 12, 18, 36

So the common factors are: 1, 2, 3, 6, 9, 18

Answer 5

1, 2, 3, 6, 9, 18
1, 2, 3, 4, 6, 9, 12, 18, 36

Answer 6

1,2,3,6,9 and 18

Answer 7

1,2,3,6,9 and 18

Answer 8

All of them.