The prime numbers between 1 and 100 are:-

Question

Accepted Answer

The correct option is 2:
To solve this question, we need to understand what prime numbers are and then identify how many of them exist between 1 and 100.

Key Concept: A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. This means a prime number has exactly two distinct positive divisors. The number 1 is not considered a prime number because it only has one divisor.

Let's list the prime numbers between 1 and 100:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

Now, let's count these prime numbers:
There are 25 prime numbers between 1 and 100.

Therefore, the correct option is the one that states "25".

The incorrect option is 1: This option states 21. There are not 21 prime numbers between 1 and 100.
The incorrect option is 3: This option states 20. There are not 20 prime numbers between 1 and 100.
The incorrect option is 4: This option states 26. There are not 26 prime numbers between 1 and 100.