Mathematics · Number Theory
If gcd(a, b) = d, then which of the following is always true?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1d ≥ gcd(a, b)
- 2d is always prime
- 3d divides both a and b✓
- 4d = a + b
Correct answer
d divides both a and b
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