The common factors of 63 and 91 are 1 and 7.
The factors of 63 are: 1, 3, 7, 9, 21, 63 The factors of 91 are: 1, 7, 13, 91
Common factors of 10 and 63 are: 1.
The GCF is 7.
28 = 2 x 2 x 7 63 = 3 x 3 x 7 91 = 7 x 13 7 is the only common factor so is the highest common factor
The common factors of 39 and 91 are: 1 and 13
The common factors of 52 and 91 are: 1 and 13
The common factors of 28 and 63 are: 1 and 7
The common factors of 30 and 63 are 1 and 3.
The common factors of 15 and 63 are: 1 and 3
The common factors of 21 and 63 are 1, 3, 7, and 21
The common factors of 91 and 14 are: 1 and 7
The common factors of 54 and 63 are: 1, 3, and 9