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Prime Factors, HCF and LCM

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Question 9
48%
144=24×32 144 = 2^4 \times 3^2 144=24×32 1080=23×33×5 1080 = 2^3 \times 3^3 \times 5 1080=23×33×5
a.

Write down the highest common factor (HCF) of 144 and 1080.

[1]
b.

Find the lowest common multiple (LCM) of 144 and 1080.

[2]

Prime Factors, HCF and LCM Questions

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

Practise OCR GCSE Maths Prime Factors, HCF and LCM with exam-style questions for Foundation and Higher tier. 59 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank