Prime numbers
Mathematics · Multiplication & Division · conceptual
Know and use the vocabulary of prime numbers, prime factors, and composite numbers; establish whether a number up to 100 is prime; recall prime numbers up to 19
What mastery looks like
- Explain that a prime number has exactly two factors: 1 and itself
- Determine whether 51 is prime or composite and justify the answer
- List all prime numbers up to 19 from memory
Check your understanding
Can Prime numbers tell you what makes a number 'prime' — that it only divides exactly by 1 and itself — and give some examples like 7, 11, and 13?
Prerequisites
Required first
Unlocks (0 directly)
None.