Because 10 is a factor of 20 and 40. So any number which divides 10 evenly divides the factor of 20 or 40 evenly
The common factors of 20 and 30 are 1, 2, 5, and 10.
1, 2, 5 and 10.
1, 2, 5 and 10.
5, 10, and 20 are factors of 20 that are not also factors of 12.
Factors of 20 which are also factors of 50 are 1, 2, 5 and 10.
Factors for 30 are: 1, 2, 3, 5, 6, 10, 15, 30 Out of these which are also factors of 20 are: 1, 2, 5, 10
The answer to the question is: "All of the common factors of 10, 25, and 20 are 1 and 5 ."
5, 10, and 20 are all multiples of 5 and factors of 20.
The factors of 20 are: 1, 2, 4, 5, 10, 20
Since 10 is a factor of 20, all of its factors are common.
The factors of 10 are 1, 2, 5, and 10. The even factors of 10 are 2 and 10. The product of the even factors of 10 is 20.
The positive integer factors of 20 are: 1, 2, 4, 5, 10, and 20.