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Program to print prime numbers in a given range

06 May 2024

Description about Program to print prime numbers in a given range

Get the starting and ending number from the user and then print all the prime numbers within the range.

Input

4

10

Output

5  7

C Program to print prime numbers in a given range

#include<stdio.h>

int Prime(int num)

{

    if(num < 2){

        return 0;

    }

    else

    {  

        int x = num/2;

        for(int i = 2; i <= x; i++)

        {

            if(num % i == 0)

            {

                return 0;

            }

        }

    }

    return 1;

}

int main()

{

    int n1, n2;

    printf("Enter the lower and upper values: ");

    scanf("%d %d",&n1, &n2);

    for(int i=n1;i <= n2;i++){

        if(Prime(i))

            printf("%d ",i);

    }

    return 0;

}

C++ Program to print prime numbers in a given range

#include <iostream>

using namespace std;

int Prime(int num)

{

    if(num < 2){

        return 0;

    }

    else

    {  

        int x = num/2;

        for(int i = 2; i <= x; i++)

        {

            if(num % i == 0)

            {

                return 0;

            }

        }

    }

    return 1;

}

int main()

{

    int n1, n2;

    cout<<"Enter the lower and upper values: ";

    cin>>n1>>n2;

    for(int i=n1;i <= n2;i++){

        if(Prime(i))

            cout<<i<<" ";

    }

    return 0;

}

Java Program to print prime numbers in a given range

import java.util.Scanner;

public class Main

{

                public static void main(String[] args) {

                                Scanner sc=new Scanner(System.in);

                                System.out.print("Enter lower and upper bounds: ");

                                int n1 = sc.nextInt();

                                int n2 = sc.nextInt();

                                int count;

                                for(int i = n1 ; i <= n2 ; i++)

                                {

                                                count = 0;

                                                for(int j = 1 ; j <= i ; j++)

                                                {

                                                                if(i % j == 0)

                                                                                count = count+1;

                                                }

                                                if(count == 2)

                                                                System.out.print(i+" ");

                                }

                }

}

Python Program to print prime numbers in a given range

lower = int(input("Enter the lower bound: "))

upper = int(input("Enter the upper bound: "))

for i in range(lower, upper+1):

    flag=1

    for j in range(2, (i//2)+1):

        if i % j == 0:

            flag=0

            break

    if flag==1 and i!=1:

        print(i,end=" ")

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