1, 3 & 9.
Factors:
9 := 1, 3, 9
54 := 1, 2, 3, 6, 9, 18, 27, 54
⇒ common factors are 1, 3 & 9.
The common factors of 54 and 144 are: 1, 2, 3, 6, 9, and 18
The factors of 45 are: 1, 3, 5, 9, 15, 45The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54The common factors are: 1, 3, 9
The factors of 54 are 1, 2, 3, 6, 9, 18, 27 and 54. For them to be common, they need to be compared to another set of factors, but I'll save you the trouble. The least common factor of any two positive integers is 1.
The common factors of 54 and 24 are: 1, 2, 3, and 6
The common factors of 18 and 54 are 1, 2, 3, 6, 9, 18
The common factors of 54 and 63 are: 1, 3, and 9
The common factors of 45 and 54 are: 1, 3, and 9
The factors of 45 are: 1, 3, 5, 9, 15, and 45. The factors of 54 are: 1, 2, 3, 6, 9, 18 and 54. So the common factors of 45 and 54 are 1, 3, and 9.
The factors of 27 are 1, 3, 9, and 27. The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54. The common factors are 1, 3, 9, and 27.
The common factors of 54 and 144 are: 1, 2, 3, 6, 9, and 18
1,3,9
For 1,836 and 54 the common factors are: 1, 2, 3, 6, 9, 18, 27, 54.
Common factors of 108 and 54 are: 1, 2, 3, 6, 9, 18, 27, and 54.
The HCF of 54 and 45 is 9
9 is.
The common factors of 126 and 54 are: 1, 2, 3, 6, 9, and 18
The common factors of 54 and 180 are: 1, 2, 3, 6, 9, and 18