31
31
31 is prime.
32
The prime number is 31. 33/3 = 11 35/5 = 7 39/3=13 31 can only divided by 1 and itself.
31
31
From that list, only 31 is a prime number.
31 is prime.
31 is prime. 32 and 33 are composite.
1 is the GCF of 33 and 31 because 31 is a prime number.
The prime factors of 33 are 3 and 11 and the prime numbers of 2 and 31 add up to 33
32
32+33+34+35+36 (31 is a prime number) = 170
The prime number is 31. 33/3 = 11 35/5 = 7 39/3=13 31 can only divided by 1 and itself.
Of the list 25, 32, 33 and 37, 37 is prime.
It is b: 31