Factors and divisibility

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

What are the factors of 12?

Back

1, 2, 3, 4, 6, 12

Front

What are the factors of 20?

Back

1, 2, 4, 5, 10, 20

Front

What is a common factor?

Back

A common factor is a number that is a factor of two or more numbers.

Front

What are the common factors of 12 and 20?

Back

1, 2, 4

Front

Which numbers have 2 as a factor?

Back

Any even number has 2 as a factor.

Front

Which numbers have 3 as a factor?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

What are the factors of 14?

Back

1, 2, 7, 14

Front

What does it mean for a number to be divisible by another number?

Back

A number is divisible by another number if it can be divided by that number without leaving a remainder.

Front

Which of the following numbers is divisible by 5? (60, 15, 42)

Back

60 and 15