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
If you mean: 53 81 41 47 and 31 then 81 is a composite number while all the rest are prime numbers
47 is a prime, the other two are composite.
It is a 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.
47 is prime.
No 47 is a prime number so it is not a composite
GCF of a prime number and a composite number is 1 if the prime number is not a factor of the composite number. Here 103 is a prime number and 120 is a composite number. And 120 is not divisible by 103(or 103 is not a factor of 120). So, GCF(103,120) = 1
prime