31, 47 and 103 are prime. The rest are composite.
31 and 47 are prime, the rest composite.
93 = 3 x 31 31 47 67 are prime
prime: 31, 37, 41, 43, 47 composite: the others
47 is a prime, the other two are composite.
If you mean: 53 81 41 47 and 31 then 81 is a composite number while all the rest are prime numbers
It is a prime.
47 is prime.
All of them except for 31, 37, 41, 43 and 47 which are prime numbers.
All of them except for 31, 37, 41, 43 and 47 which are prime numbers.
No 47 is a prime number so it is not a composite
prime
prime