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
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 GCF is 7.
Common factors of 10 and 63 are: 1.
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 factors of 63 are 1, 3, 7, 9, 21 and 63. For them to be common, they need to be compared to another set of factors.
The common factors of 91 and 14 are: 1 and 7