Question

What is the sum of first five prime numbers
a. 18.
b. 26.
c. 28.
d. 39.

Answer 1

c

Explanation:

a prime number has only 2 factors , 1 and the number itself.

the first 5 prime numbers are

2, 3, 5, 7, 11

then their sum is

2 + 3 + 5 + 7 + 11

= 28