Two relatively prime numbers need not be prime numbers. Is this statement true?

All odd numbers are prime numbers. Is this statement true or false?

Co-Prime Numbers and Twine Prime Numbers

what is a prime number ? is 1 a prime number ?

Consider the following statements A.The sum of two prime numbers is a prime number. B. The product of two prime numbers is a prime number. Which of these statements is/are correct?

HCF of two co-prime numbers is:

Two consecutive numbers are/are not co-prime

The LCM of two co-prime numbers is their .