Question
The sum of the first four prime numbers is:
This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
17
Prime Numbers Sum Calculation
The question asks for the sum of the first four prime numbers.
Identify Prime Numbers
A prime number is a natural number greater than 1 that has only two divisors: 1 and itself.
- The first prime number is 2.
- The second prime number is 3.
- The third prime number is 5.
- The fourth prime number is 7.
Calculate the Sum
To find the sum, we add these first four prime numbers together:
$ 2 + 3 + 5 + 7 = 17 $
Conclusion
The sum of the first four prime numbers is 17.
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