Menu

PRIMARYSECONDARYGCSE REVISION
SCHOOLSSEARCH
LOGINFREE TRIAL
Back to:
Prime Factorisation•
Types of Number

Using Prime Decomposition to Find HCF and LCM (B) WORKSHEET

Suitable for Year groups: Year 9, Year 10, Year 11
GCSE Tier: Foundation/Higher
Targeting grades: 4-5
Prerequisite knowledge: Finding product of prime numbers of any number
Learning Objective: Use Prime Factorisation to find HCF and LCM

Using Prime Decomposition to Find HCF and LCM (B) WORKSHEET DESCRIPTION

Practice using the prime factor decomposition of pairs of numbers to find the HCF and LCM with this worksheet. In section A, learners will write six numbers from 24 to 308 as products of prime factors before using these to answer four questions on LCM and HCF of these numbers.

Next, in section B, students answer four more questions, including HCF and LCM of three numbers. Pupils are encouraged to use their prime factorisation method from section A.

Learners are required to use these skills to problem solve in section C, with two-worded questions. The worksheet ends with an extension where students consider prime numbers equal to the sum of two square numbers.

All worksheets are created by the team of experienced teachers at Cazoom Maths.

Using Prime Decomposition to Find HCF and LCM Worksheet fit for students in year 9, 10 and 11

RELATED TO Using Prime Decomposition to Find HCF and LCM (B) WORKSHEET

Prime Factor Decomposition Using Factor Trees

Year groups: 8, 9, 10

Preview of Prime Factor Decomposition Using Factor Trees

Using Prime Decomposition to Find HCF and LCM (A)

Year groups: 8, 9, 10

Preview of Using Prime Decomposition to Find HCF and LCM (A)

Factors and Primes

Year groups: 7, 8

Preview of Factors and Primes

Calculations Using Indices (A)

Year groups: 7, 8

Preview of Calculations Using Indices (A)

Frequently Asked Questions

Use Prime Factorisation to find HCF and LCM