Question

How many prime numbers are there from 1 to 90

Answer 1

Answer:

24 primes !!

Now , there are 24 primes between 1 and 90: 2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89.

Answer 2

Given; 1 to 90

To Find; the number of prime numbers between 1 and 90

Solution ;

A prime number is a number that is not divisible by 2.

There are several prime numbers between 1 and 90

8 prime numbers under 20: 2, 3, 5, 7, 11, 13, 17 and 19.

The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.

There are 25 prime numbers between 1 and 100.

Hence prime numbers between 1 and 100 are 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