In this post, we will write a **C++ program to find out the prime numbers from a given range**. user will enter the start and end number and in between that program will print the prime numbers.

## C++ program to find out the prime numbers from a given range.

```
#include<iostream>
#include<conio.h>
int prime(int,int);
int main()
{
system("cls");
int st,en;
std::cout<<"Enter the start value = ";
std::cin>>st;
std::cout<<"Enter the end value = ";
std::cin>>en;
prime(st,en);
getch();
return 0;
}
int prime(int st, int en)
{
int i,j,count;
for(i=st;i<=en;i++)
{
count = 0;
for(j=1;j<=i;j++)
{
if(i%j == 0)
count = count+1;
}
if(count == 2)
std::cout<<i<<std::endl;
}
}
```

### Output

Enter the start value = 100 Enter the end value = 199 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199

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