How many prime nos between 1to 100?

Answer 1

Here are all of the prime numbers such that 0

1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 51, 53, 59, 61, 67, 71, 73, 79, 83, 89, 91, 97

There are 28 prime numbers that have values less than 100.

* * * *

Wrong!

1 is not a prime (nor a composite).

51 is not a prime: 3*17 = 51

91 is not a prime. 7*13 = 91

There are 25 primes less than 100.