4MA1/2HR Jun 2022, Question 2: Prime Factorization
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2HR (Higher) · Calculator · 3 marks
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The question, in short
Express 1200 in prime factor form using exponents, with clear working shown.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 11200 ÷ 2 = 600
- 2600 ÷ 2 = 300
- 3300 ÷ 2 = 150
- 4150 ÷ 2 = 75
- 575 ÷ 3 = 25
- 625 ÷ 5 = 5
- 75 ÷ 5 = 1
- 8prime factors are 2, 2, 2, 2, 3, 5, 5
- 92⁴ × 3 × 5²
Answer2⁴ × 3 × 5²
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