Every whole number has ' 1 ' as a factor, because ' 1 ' can
divide evenly into every whole number.
The factors of 13 are 1 and 13. The factors of 2 are 1 and 2. Both 13 and 2 are prime numbers.
The common factors of 12 and 14 are 1 and 21 and 2
The factors of 91 are:1, 7, 13, 91The factors of 156 are:1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156The common factors are:1, 13
1 and 13 are their only common factors.39: 1, 3, 13, 3965: 1, 5, 13, 65
The common factors of 13 and 52 are: 1 and 13
The factors of 12 are: 1, 2, 3, 4, 6, 12 The factors of 13 are: 1, 13
The factors of 13 are 1 and 13. The factors of 2 are 1 and 2. Both 13 and 2 are prime numbers.
The common factors of 12 and 14 are 1 and 21 and 2
1, 2, 3, 4, 6, 12 1. 13
The factors of 13 are: 1 13 The factors of 36 are: 1 2 3 4 6 9 12 18 36 The highest factor on both lists is the GCF, in this case 1.
The factors of 91 are:1, 7, 13, 91The factors of 156 are:1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156The common factors are:1, 13
The factors of 12 are 1, 2, 3, 4, 6, 12 The factors of 39 are 1, 3, 13, 39 The common factors are: 1 and 3
As factors, only 1.
The factors of 13 are: 1, 13The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24
The numbers that go into both 12 and 15 are their common factors. The factors of 12 are 1, 2, 3, 4, 6, and 12, while the factors of 15 are 1, 3, 5, and 15. The common factors between the two sets are 1 and 3. Therefore, the numbers that go into both 12 and 15 are 1 and 3.
1 and 13 are their only common factors.39: 1, 3, 13, 3965: 1, 5, 13, 65
The common factors of 13 and 52 are: 1 and 13