Question

If two numbers are coprime at least one of them must be a prime number​

Answer 1

Answer:

false

Step-by-step explanation:

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Answer 2

Co Prime Numbers: Two numbers are said to be co-prime numbers only if their common divisor is 1 or highest common factor(HCF) is 1. ... If two numbers are co-prime that is not necessary that one of them must be a prime number. For example 8 and 9 are co-prime numbers but none of them are prime numbers.