Skip to content

Course home

Question bank·Prime Factors, HCF and LCM
Sign up

Prime Factors, HCF and LCM

EasyMedium
123456789
Question 9
82%
A=22×3×52 \mathbf{A} = 2^2 \times 3 \times 5^2 A=22×3×52 B=23×32×7 \mathbf{B} = 2^3 \times 3^2 \times 7 B=23×32×7
a.

Write down the highest common factor (HCF) of A and B.

[1]
b.

Find the lowest common multiple (LCM) of A and B.

[2]
Video walkthrough

Prime Factors, HCF and LCM Questions

  1. IGCSE
  2. /Maths
  3. /Prime Factors, HCF and LCM

15 exam-style questions on Oxford AQA IGCSE Maths Prime Factors, HCF and LCM. Each one has a worked solution and a mark scheme showing where the marks go.

More questions