What is a factor?

Find out how a factor is a number that divides into another number exactly, without leaving a remainder.

What is a common factor?

Find out how to work out the common factors of two numbers.

What is a prime?

Learn what a prime is.

How to find the factors of a number with arrays

Learn how to find the factors of a number with arrays.

How to divide using the array method

Find out how to divide with pen and paper using the array method.