How many prime numbers lie between 1 and 30? 

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RRB Technician Grade III Official Paper (Held On: 28 Dec, 2024 Shift 1)
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  1. 8
  2. 11
  3. 10
  4. 9

Answer (Detailed Solution Below)

Option 3 : 10
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Detailed Solution

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Given:

We need to find the number of prime numbers between 1 and 30.

Formula Used:

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Calculation:

List of prime numbers between 1 and 30: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Total number of prime numbers = 10

The correct answer is option 3.

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