Divisibility Rules
Use divisibility rules and algorithms to test for factors, multiples and common divisors.
7 worksheetsRead the explainer →
- 1Divisibility Algorithms — Practice 1Practise using divisibility rules to test whether a number is divisible by 2, 3, 4, 5, 6, 9 and 10.easy
- 2Divisibility Algorithms — Practice 2Further practice applying divisibility rules and algorithms to identify factors, multiples and common divisors.easy
- 3Division with Written AlgorithmsUse short division to divide 3-digit numbers by a 1-digit number; check answers using multiplication.easy
- 4Divisibility Rules DetectiveUse divisibility rules to test whether a number is divisible by 2, 3, 4, 5, 6, 9 and 10.easy
- 5Factor TreesBreak a number into its prime factors using a factor-tree algorithm.medium
- 6Find All the FactorsList every factor of a number using a systematic checking method.medium
- 7Sieve of EratosthenesFollow the Sieve of Eratosthenes algorithm to find the prime numbers.hard