31 is a Prime number because it has only two factors which are itself and one
31 and 61 are prime, the rest composite.
neither prime or composite
31 is a prime number because it has only two factors which are itself and one
Yes it is, The only divisors of 31 are 1 and 31 so it is prime.Yes.31 is prime, yes
0 is neither a prime nor a composite number.