Prime Factorisation Calculator
Type a whole number up to a trillion to see its factor tree with the primes highlighted, then read off its prime factorisation in index form.
What you can do
- A factor tree drawn for any number up to 1,000,000,000,000
- Split evenly, or take out the smallest prime each time
- The answer in index form, such as 2³ × 3² × 5
- Counts the factors of the number and adds them up
- Practise with random questions and worked solutions