Question

Which number below is a prime number?
O A. 18
O B. 12
O c. 17
O D. 28

Answer 1

Answer: 17 is the only prime number

Explanation:

Answer 2

C 17

Explanation:

A. 18 = 2*9 so not prime

B. 12 = 3*4 so not prime

c. 17

D. 28 = 4*7 so not prime

17 = 1*17 so the only numbers are 1 and itself so it is prime