Print prime numbers from 1 to 100 in C++

Print prime numbers from 1 to 100 in C++

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+#include <iostream>
+#include<cmath>
+using namespace std;
+
+int main()
+{   cout << "Prime Numbers between 1 and 100 are:\n";
+
+    for(int i=2;i<=100;++i) //loop to check for each number in the range
+
+    {   int ctr=0; //to maintain factor count
+
+        for(int j=2;j<=sqrt(i);++j) //checking for factors
+
+        {   if(i%j==0)
+
+                ctr=1; //increasing factor count when found
+
+        }
+
+        if(ctr==0) //checking and printing prime numbers
+
+                cout<<i<<" ";
+
+    }
+
+    return 0;
+
+}