Prime Numbers

Prime 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 ...

Prime number

a number that is divisible only by itself and 1 (e.g. 2, 3, 5, 7, 11)
suppose a number 'n' it can be divided by if '1' and only by itself then it can be a prime number

Prime number

def is_prime(n):
  if(n<0):
    print("n is not a nature number!")
    return False
  for i in range(1,ceil(n/2)+1):
    if (i != n and i != 1 and n%i == 0):
      return False
  return True
print(is_prime(int(input("number>>"))))

Source: github.com

What are prime numbers

Prime numbers: whole numbers greater than 1 that are only divisible 
by 1 and itself.

Prime numbers

A number only divisible by 1 and itself

Prime Numbers

using System;
public class Program
{
    static void Main(string[] args)
    {
        var results = GenerateSieve(1000);
        var i=0;
        foreach (var item in results)
        {
            if(item) Console.Write(i + " ");
            i++;
        }
    }
 
    static bool[] GenerateSieve(int num)
    {
        // Creating an array indicating whether numbers are prime.
        bool[] isPrime = new bool[num + 1];
        for (int i = 2; i <= num; i++) isPrime[i] = true;
 
        // Removing out multiples.
        for (int i = 2; i <= num; i++)
        {
            // Check if i is prime.
            if (isPrime[i])
            {
                // Eliminate multiples of i.
                for (int j = i * 2; j <= num; j += i)
                    isPrime[j] = false;
            }
        }
        return isPrime;
    }
}

Source: ideone.com

Similar codes

5 votes166 views1 answer
Unity movetowards 2d
C#
1 vote175 views1 answer
Rigidbody.addtorque
C#
1 vote182 views1 answer
Get self component in unity
C#
0 vote167 views1 answer
Visual studio console clear
C#
95 votes239 views6 answers
C# string reverse
C#
0 vote158 views1 answer
Create cursor in NETEZZA
C#
6 votes221 views1 answer
C# split a string and return list
C#
0 vote189 views1 answer
How to get 4 end len in string c#
C#
0 vote170 views1 answer
How to make a custom cursor in windows forms c#
C#
0 vote167 views1 answer
SendFileAsync discord
C#