15 , 33

Find the common factors for the numerical part:

15,33

The factors for 15 are all numbers between 1 and 15, which divide 15 evenly.

Check numbers between 1 and 15

Find the factor pairs of 15 where x⋅y=15.

xy11535

List the factors for 15.

1,3,5,15

1,3,5,15

The factors for 33 are all numbers between 1 and 33, which divide 33 evenly.

Check numbers between 1 and 33

Find the factor pairs of 33 where x⋅y=33.

xy133311

List the factors for 33.

1,3,11,33

1,3,11,33

List all the factors for 15,33 to find the common factors.

15: 1,3,5,15

33: 1,3,11,33

The common factors for 15,33 are 1,3.

1,3

The GCF (HCF) of the numerical factors 1,3 is 3.

3

Find the GCF 15 , 33