Explain how to identify a prime factor of a number
I can explain how to identify a prime factor of a number.
Explain how to identify a prime factor of a number
I can explain how to identify a prime factor of a number.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- All numbers can be written as a product of 2 or more prime numbers.
- A prime factor is a factor of a number which is prime.
Keywords
Factor - A factor is a whole number which exactly divides another whole number.
Prime factor - A prime factor is a factor of a number that is a prime number.
Common misconception
Pupils try to compose numbers additively using prime factors.
Ensure pupils are confident with finding the factors of a number first before extending to finding prime factors of known factors. Give time to building numbers with prime factors in arrays to help emphasise their multiplicative composition.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
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