a method to find the prime factors of a given integer

The highest common factor of two or more integers  which can be divided by all other possible common factors

an abbreviation for highest common factor

Highest common factor

Maths

This unit on factors, multiples, squares and cubes helps pupils build on their understanding that any positive integer can be expressed as a product of its factors. This skill is used in the next unit to explore multiplying and dividing with decimals.

In this unit, pupils learnt how to identify common factors and common multiples. in this unit, pupils build on this understanding to find the LCM and HCF

Properties of number: factors, multiples, squares and cubes

$$7^5$$ is a factor of an integer.  Which of the following are also factors of the same integer?

Which of the following is a factor of $$2^4\times3^2\times5^2$$ and of $$2^3\times3^4\times5$$?

The HCF of 36, 54 and 270 is 18.  The missing prime factor in the Venn diagram is {{ }}

A {{ }} number is the product of two repeated integers.

Write $$2^3\times3\times5^2$$ as an integer.

True or false? $$2^5\times3^3\times5$$ is an even integer

False, $$5^2$$ is 25 and that is not a multiple of 10

True or false? $$2\times3\times5^2$$ is a multiple of 10

Which of the following is a multiple of 6?

Which of the following is a square number?

This lesson will be removed by end of Summer Term 2025.

Highest common factor

Lesson outcome

This lesson will be removed by end of Summer Term 2025.