Learn how to work out the factors of a number using a diagrammatic representation and factor trees in this KS3 maths study guide from BBC Bitesize.

A prime number is a whole number, greater than 1, that only has two factors. A factor is a number that divides another number evenly, with no remainder or decimal. The factors of a prime number are ...

Ken Ono, a top mathematician and advisor at the University of Virginia, has helped uncover a striking new way to find prime numbers—those puzzling building blocks of arithmetic that have kept ...