Question 25
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In how many ways can 210 be written as a product a × b × c of three positive integers, if order matters?
- A 64
- B 27
- C 81 Correct
- D 24
Correct Answer: Option C
210 = 2 × 3 × 5 × 7
Each prime goes to one of a, b, c: 3⁴ = 81
Answer: 81
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