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Numbers - General Aptitude

Q1:

The sum of first five prime numbers is:

A 11

B 18

C 26

D 28

ANS:D - 28

Required sum = (2 + 3 + 5 + 7 + 11) = 28. Note: 1 is not a prime number. Definition: A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.