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.
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.
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.
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.
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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