The HCF of two co-prime numbers is always ___, and their LCM is always ___.
- A.1; the product of the two numbers ✓
- B.1; the sum of the two numbers
- C.0; the product of the two numbers
- D.the smaller number; the larger number
Explanation: Co-prime numbers share no common factor besides 1, so their HCF is always 1 — and since they share nothing, their LCM must be their full product.
Class 6 IMO Mathematics Olympiad practice · HOTS / Achievers · Multi-Concept Achievers
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