No, 8 is not a prime number. The number 8 is divisible by 1, 2, 4, 8. For a number to be classified as a prime number, it should have exactly two factors. Since 8 has more than two factors, i.e. 1, 2, 4, 8, it is not a prime number.

Why 1 is not a prime number?

1 can only be divided by one number, 1 itself, so with this definition 1 is not a prime number. It is important to remember that mathematical definitions develop and evolve. Throughout history, many mathematicians considered 1 to be a prime number although that is not now a commonly held view.

How many prime numbers are there between 11 and 30?

Answer: 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, …

What are the prime numbers between 10 and 40?

All prime numbers between 10 and 40 are 11, 13, 17, 19, 23, 29, 31 and 37.

What is the sum of all the prime numbers between 10 and 20?

ANS: The sum of all the prime numbers between 10 and 20 is 60.

Prime numbers between 20 and 30 in Hindi | Mathematics By KCLAcademy

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