diff --git a/homework/nwd-nnw/nwdNww.hpp b/homework/nwd-nnw/nwdNww.hpp
index 0491a2c9..6aeac72a 100644
--- a/homework/nwd-nnw/nwdNww.hpp
+++ b/homework/nwd-nnw/nwdNww.hpp
@@ -1,11 +1,23 @@
 #pragma once
 
 int NWD(int lhs, int rhs) {
-    // TODO: Implement me :)
-    return -1;
+    int first = (lhs > 0) ? lhs : -lhs;
+    int second = (rhs > 0) ? rhs : -rhs;
+
+    while (second != 0) {
+        int rest = 0;
+        rest = first % second;
+        first = second;
+        second = rest;
+    }
+
+    return first;
 }
 
 int NWW(int lhs, int rhs) {
-    // TODO: Implement me :)
-    return -1;
+    if (lhs == 0 || rhs == 0) {
+        return 0;
+    }
+    int result = (lhs / NWD(lhs, rhs)) * rhs;  // divide first to protect against overflow
+    return (lhs < 0 ^ rhs < 0) ? -result : result;
 }