Question

if 2 numbers are co prime at least one of them must be prime​

Answer 1

Answer:

no as 9 and 8 are also coprime but both are not prime it is not compulsory for the both the numbers to be prime

Answer 2

Explanation:

⇒ 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.

⇒ Prime Numbers : Prime number is a natural number which is only divisible by itself and it cannot be made by multiplying any other numbers.

⇒ If two numbers are co-prime that is not necessary that one of them must be a prime number.

For example, 4 and 9 are co-prime numbers but none of them are prime numbers.