Given: If GCD of 5 and 12 is 1 and if the sum of 5 and 12 is 7 if and only if
To determine: The truth statement
Solution:
If GCD of 5 and 12 is 1, then it can be noted that 5 is a prime number. A prime number has two factors, itself and 1.
Hence, 5 is a prime number