4MA1/1H Nov 2021, Question 7: Prime Factorization
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1H (Higher) · Calculator · 3 marks
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The question, in short
Express 3.6 × 10³ as a product of prime powers, showing all steps of the working.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 13.6 × 10³ = 3600
- 23600 = 36 × 100
- 336 = 2² × 3² and 100 = 2² × 5²
- 4So 3600 = 2² × 3² × 2² × 5² = 2⁴ × 3² × 5²
Answer2⁴ × 3² × 5²
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