The term ‘composite numbers’ is not introduced formally in the UK until Year 5.Īccording to the national curriculum, Year 5 children should be taught to: There are 5 composite numbers between 10: 4, 6, 8, 9, 10ġ is neither a prime nor composite number.ĭownload Free Now! Composite numbers in primary school.Note that a highly composite number has a large number of factors, and outlining this concept to pupils may help them remember that a composite number has multiple factors in comparison to a prime number which just has two factors. Remember that a composite number can be any given number which is a positive integer (or natural number) whose divisors are smaller positive integers, provided the number has a minimum of 3 factors. 3 would be a prime number because its only factors are 1 and 3.Ī composite number, on the other hand, can be any whole number that has more than 2 factors. How does this relate to other areas of mathematics?Ī prime number can only have 2 factors, 1 and the number itself.
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