Aptitude - Numbers - Discussion

What is prime number. Please explain.

To find a prime number:
the numbers 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 etc

This total 25 no.s is not divisible by ant other no.
for example:
1. 11 is not divisble my any other no.
2. 17 is not divisble my any other no.
3. 71 is not divisble my any other no. etc etc etc
if the number is not divisible ny any other no. then we called as prime number

The method to find a prime no. is 6n-1 or 6n+1 except 2 & 3. . .1 is neither prime nor composite.

To find a prime number :

The number must divide itself only, For example 2,3,5 these numbers only divide the same tables only.

Pleas tell me anybody how to find prime number.

Can you give general method to find first n prime numbers.

Prime number is start from 2.

2 + 3 + 5 + 7 + 11 = 28.

@Ansar

1 is not a prime number.

A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.

The smallest twenty-five prime numbers (all the prime numbers under 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.

Hope this will help you. Have a nice day!

Prime number is start from 2.

2 + 3 + 5 + 7 + 11 = 28.