The factors of 21 are 1, 3, 7, 21. The factors of 63 are 1, 3, 7, 9, 21, 63
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The factors of 13 are: 1, 13 The factors of 21 are: 1, 3, 7, 21 The factors of 63 are: 1, 3, 7, 9, 21, 63 because these are the positive integers that divide evenly into 63 with no remainder. The factors of 79 are: 1, 79
The factors of 21 are:1, 3, 7, 21The factors of 63 are:1, 3, 7, 9, 21, 63The common factors are:1, 3, 7, 21
The factors of 63 are 1, 3, 7, 9, 21, and 63. Pick two.
The factors of 9 are: 1, 3, 9 The factors of 63 are: 1, 3, 7, 9, 21, 63
The factors of 63 are 1, 3, 7, 9, 21 and 63. To find all the factors of a number start with 1 times the number and list the factor pairs. 63: 1 x 63 3 x 21 7 x 9