3
2, 9 and some other numbers
The highest common factor of both numbers is 9
The HCF of the given two numbers is 9
9 and 5
The HCF of both numbers is 1
The common factors are: 1, 3, 9
1, 3 and 9 will go into both numbers evenly
Factors apply to whole numbers, not decimals.
One. The two numbers are coprime.
The HCF of the given four numbers is 1
The numbers are co-prime so the answer is 1.
These numbers: 1, 3, 9, 27, 81, 243.