Merge pull request vishal8113#171 from shrutiujjwal24/master

Create primenumber.cpp

primenumber.cpp

@@ -0,0 +1,26 @@
+// A school method based C++ program to check if a
+// number is prime
+#include <bits/stdc++.h>
+using namespace std;
+
+bool isPrime(int n)
+{
+	// Corner case
+	if (n <= 1)
+		return false;
+
+	// Check from 2 to n-1
+	for (int i = 2; i < n; i++)
+		if (n % i == 0)
+			return false;
+
+	return true;
+}
+
+// Driver Program to test above function
+int main()
+{
+	isPrime(11) ? cout << " true\n" : cout << " false\n";
+	isPrime(15) ? cout << " true\n" : cout << " false\n";
+	return 0;
+}