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Author: Vraj2811

Check_Prime.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+using namespace std;
+
+int main()
+{
+    int number;
+    cin >> number;
+
+    if (number <= 1)
+    {
+        cout << "Enter a no. greater than 1" << endl;
+        return 1;
+    }
+
+    for (int i = 2; i * i <= number; ++i)
+    {
+        if (number % i == 0)
+        {
+            cout << "Not Prime" << endl;
+            return 0;
+        }
+    }
+
+    cout << "Prime" << endl;
+    return 0;
+}

Sum_Of_Even.cpp

@@ -0,0 +1,28 @@
+#include <iostream>
+using namespace std;
+
+int main()
+{
+    int n;
+    cout << "Enter the value of n: ";
+    cin >> n;
+
+    if (n <= 0)
+    {
+        cout << "Please enter a positive integer." << endl;
+        return 1;
+    }
+
+    int sum = 0;
+    int evenNumber = 2;
+
+    for (int i = 0; i < n; ++i)
+    {
+        sum += evenNumber;
+        evenNumber += 2;
+    }
+
+    cout << "The sum of the first " << n << " even numbers is " << sum << endl;
+
+    return 0;
+}