C program to calculate sum of prime numbers between 1 to n

C program to calculate sum of prime numbers between 1 to n

In this article, we will discuss the concept of C program to calculate sum of prime numbers between 1 to n.

In this code, we are going to learn how to find sum of prime numbers 1 to n using different methods in C language.

This is done using for loop,while loop,do-while loop in C language

Code to calculate sum of prime numbers

Code to calculate sum of prime numbers using for loop

In this program, we will calculate sum of prime numbers 1 to n using for loop in C language

Program 1

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,max,count,sum=0;
    printf("Enter the maximum value");
    scanf("%d",&max);

    for(i=2; i<=max; i++){
        count=1;
        for(j=2; j<=i/2; j++){
            if(i%j==0){
                count=0;
                break;
            }
        }
        if(count==1){
            sum+=i;
        }
    }
    printf("sum of all prime numbers between 1 to %d=%d",max,sum);
getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter the maximum value: 10
Sum of all prime numbers between 1 to 10=17

 

Code to calculate sum of prime numbers using while loop

In this program, we will calculate sum of prime numbers 1 to n using while loop in C language

Program 2

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,max,count,sum=0;
    printf("Enter the maximum value ");
    scanf("%d",&max);
i=2;
    while(i<=max){
        count=1;
        j=2;
        while(j<=i/2){
            if(i%j==0){
                count=0;
                break;
            }
            j++;
        }
        if(count==1){
            sum+=i;
        }
        i++;
    }
    printf("sum of all prime numbers between 1 to %d=%d",max,sum);
    getch();
    return 0;
}

 

When the above code is executed, it produces the following result

Enter the maximum value: 50
Sum of all prime numbers between 1 to 50=328

 

Code to calculate sum of prime numbers using do-while loop

In this program, we will calculate sum of prime numbers 1 to n using do-while loop in C language

Program 3

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,max,count,sum=0;
    printf("Enter the maximum value ");
    scanf("%d",&max);
i=2;
    do{
        count=1;
        j=2;
        do{
            if(i%j==0){
                count=0;
                break;
            }
            j++;
        }while(j<=i/2);
        if(count==1){
            sum+=i;
        }
        i++;
    }while(i<=max);
    printf("sum of all prime numbers between 1 to %d=%d",max,sum);
    getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter the maximum value: 100
Sum of all prime numbers between 1 to 100=1058

 

Suggested post

for loop in C language

while loop in C language

do-while loop in C language

if statements in C language

function in C language

 

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