diff --git a/prime.cpp b/prime.cpp
new file mode 100644
index 0000000..58be2ac
--- /dev/null
+++ b/prime.cpp
@@ -0,0 +1,24 @@
+#include <stdio.h>
+int main()
+{
+    int n, i, flag = 0;
+
+    printf("Enter a positive integer: ");
+    scanf("%d",&n);
+
+    for(i=2; i<=n/2; ++i)
+    {
+        if(n%i==0)
+        {
+            flag=1;
+            break;
+        }
+    }
+
+    if (flag==0)
+        printf("%d is a prime number.",n);
+    else
+        printf("%d is not a prime number.",n);
+    
+    return 0;
+}