Factors and Multiples

Front

What is the highest common factor of 20 and 30?

Back

10

Front

A prime number is...

Back

a number that has only two factors.
(1 and itself)

Front

Which number is NOT prime? Options: 3, 7, 17, 21

Back

21

Front

All the factors of 15 are: 1, 2, 3, 5, 13, 15, 1, 15, 1, 6, 9, 15, 1, 3, 5, 15

Back

1, 3, 5, 15

Front

A number having more than two factors is called

Back

Composite

Front

Which of the following number is divisible by 4? Options: 932, 810, 414, 638

Back

932

Front

Which is NOT a factor of 9? Options: 0, 1, 3, 9

Back

0

Front

Factors of both 6 and 15?

Back

3