The common factors are: 1, 2, 5, 10.
Chat with our AI personalities
To find the common factors of 30 and 20, we first list the factors of each number. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors that are common to both numbers are 1, 2, 5, and 10.
The greatest common factor is 10.
The common factors of 30 and 21 are 1 and 3.
The common factors of 30 and 63 are 1 and 3.
The factors of 20 are 1, 2, 4, 5, 10, and 20The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30The common factors of 20 and 30 are 1, 2, 5, and 10