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If GCD of two numbers is 1, then the two numbers are said to be ________

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in Data Structures & Algorithms II by (111k points)
If GCD of two numbers is 1, then the two numbers are said to be ________

(a) Co-prime numbers

(b) Prime numbers

(c) Composite numbers

(d) Rational numbers

This question was addressed to me in an interview for internship.

My question is taken from Number Theory in section Number Theory of Data Structures & Algorithms II

1 Answer

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Best answer
Right choice is (a) Co-prime numbers

The best I can explain: If GCD of two numbers is 1, they are called as co-prime or relatively prime numbers. It does not mean that they are prime numbers. They don’t have any prime factors in common.

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