diff --git a/src/math/computation.py b/src/math/computation.py
index 7f09784..49f4833 100644
--- a/src/math/computation.py
+++ b/src/math/computation.py
@@ -1,5 +1,5 @@
 def gcd_recursive(a: int, b: int) -> int:
     """Calculate greatest common divisor using Euclidean algorithm with recursion."""
-    if b == 0:
-        return a
-    return gcd_recursive(b, a % b)
+    while b:
+        a, b = b, a % b
+    return a