Common factors of 60 and 45 are: 1, 3, 5, and 15.
The GCF is 15.
The common factors of 35 and 45 are: 1 and 5
The common factors of 24 and 45 are: 1 and 31 and 3
The GCF is 20.
4
The GCF is 20.
The GCF is 12.
The HCF is 15.
The factors of 45 are 1, 3, 5, 9, 15, 45. For them to be common, they need to be compared to another set of factors.
The common factors of 45 and 54 are: 1, 3, and 9
Since 45 is a factor of 90, all of its factors are common.
The common factors of 45 and 63 are 1, 3, and 9.