4MA1/1HR Jun 2023, Question 1: Prime Factorization
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1HR (Higher) · Calculator · 3 marks
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The question, in short
Express 2250 as a multiplication of prime factor powers, showing all stages of the method clearly.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 12250 = 2 × 1125
- 21125 = 5 × 225
- 3225 = 3 × 75 = 3 × 5 × 15 = 3 × 5 × 3 × 5
- 42250 = 2 × 3 × 3 × 5 × 5 × 5 = 2 × 3² × 5³
Answer2 × 3² × 5³
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