105 , 189

Find the common factors for the numerical part:

105,189

The factors for 105 are all numbers between 1 and 105, which divide 105 evenly.

Check numbers between 1 and 105

Find the factor pairs of 105 where x⋅y=105.

xy1105335521715

List the factors for 105.

1,3,5,7,15,21,35,105

1,3,5,7,15,21,35,105

The factors for 189 are all numbers between 1 and 189, which divide 189 evenly.

Check numbers between 1 and 189

Find the factor pairs of 189 where x⋅y=189.

xy1189363727921

List the factors for 189.

1,3,7,9,21,27,63,189

1,3,7,9,21,27,63,189

List all the factors for 105,189 to find the common factors.

105: 1,3,5,7,15,21,35,105

189: 1,3,7,9,21,27,63,189

The common factors for 105,189 are 1,3,7,21.

1,3,7,21

The GCF (HCF) of the numerical factors 1,3,7,21 is 21.

21

Find the GCF 105 , 189