Question
Which of the following pairs is NOT
coprime?Solution
ATQ,
Two numbers are coprime if their greatest common divisor (GCD) is 1, i.e., they have no common factors other than 1. Check each pair: (17, 34) → GCD = 17 ❌ Not coprime (11, 13) → GCD = 1 ✅ (15, 17) → GCD = 1 ✅ (17, 23) → GCD = 1 ✅
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