Six.
13
The common factors of 6 and 15 is 1 and 3 that's all
The common factors of 10 and 15 are: 1 and 5.
1, 3, 5 and 15
The factors of 15 are:1, 3, 5, 15The factors of 45 are:1, 3, 5, 9, 15, 45The factors of 75 are:1, 3, 5, 15, 25, 75The common factors are:1, 3, 5, 15
All numbers have factors. Some numbers have some of the same factors as other numbers. These are known as common factors because they are factors that the numbers have in common. 3 is a factor of 12. 3 is a factor of 15. 3 is a common factor of 12 and 15.
1 + 15 + 3 + 5 = 24
The common factors are: 1, 3, 5, 15.
Since 5 is a factor of 15, all of its factors are common.
1,3,5 and 15,
The common factors are: 1, 5.
1, 3, 5, 9, 15, 45 (sum = 78).
The common factors of 6 and 15 is 1 and 3 that's all
60
The common factors are: 1, 3, 5, 15.
The common factors of 10 and 15 are: 1 and 5.
Since 15 is a factor of 30, all of its factors are common.
1 + 3 + 5 + 15 = 24