Skip to content
MathsGenie logo
Open app

Course home

  1. IGCSE
  3. Maths CIE
  5. Question bank

Prime Factors, HCF and LCM

EasyMedium
12345678910
Question 9
648=23×34 648 = 2^3 \times 3^4 648=23×34 540=22×33×5 540 = 2^2 \times 3^3 \times 5 540=22×33×5
a.

Write down the highest common factor (HCF) of 648 and 540.

[1]
b.

Find the lowest common multiple (LCM) of 648 and 540.

[2]

Prime Factors, HCF and LCM Questions

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