The GCF is 1.
Of course not! For example 3 and 9 are odd, but are not co-prime!
There are an infinite number. 34, for example.
1: the numbers are co-prime.
Their greatest common factor is ' 1 '.
Only the number 1 since the two numbers are co-prime.
No 65 is not prime since it has factors of 1 and 65 or 1*65=65 and 5 and 13 or 5*13=65. Prime numbers have only 1 and that number as its factors.
27
27 is not prime
No, 50 and 65 are not relatively prime.
No. Even numbers can't be co-prime.
65 x 27 = 1755