To Check Whether the Given Number is Prime Number or Not
Write a program to check whether the given number is prime number or not.
Answers
Answered by
0
#include<stdio.h>
void main()
{
int a,i;
clrscr();
printf("given number:");
scanf("%d",&a);
for(i=2;i<a;i++)
{
if(a%i==0)
{
printf("%d is not prime number",a);
break;
}
}
if(a==i)
printf("%d is prime number",a);
getch();
}
output of the above program is
given number:13
13 is prime number
void main()
{
int a,i;
clrscr();
printf("given number:");
scanf("%d",&a);
for(i=2;i<a;i++)
{
if(a%i==0)
{
printf("%d is not prime number",a);
break;
}
}
if(a==i)
printf("%d is prime number",a);
getch();
}
output of the above program is
given number:13
13 is prime number
Answered by
2
Answer:
import java.util.*;
class abc
int main()
{
int n, i, flag = 0;
printf("Enter a positive integer: ");
scanf("%d", &n);
for (i = 2; i <= n / 2; ++i) {
// condition for non-prime
if (n % i == 0) {
flag = 1;
break;
}
}
if (n == 1) {
printf("1 is neither prime nor composite.");
}
else {
if (flag == 0)
printf("%d is a prime number.", n);
else
printf("%d is not a prime number.", n);
}
return 0;
}
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