diff --git a/Euler3.c b/Euler3.c
index 955cad5..c921752 100644
--- a/Euler3.c
+++ b/Euler3.c
@@ -1,3 +1,5 @@
+// Euler3.c
+
 #include <stdio.h>
 #include <math.h>
 
@@ -27,4 +29,4 @@ int checkPrime(long int num){
 			return 0;
 	}
 	return 1;
-}
\ No newline at end of file
+}