diff --git a/leetcode/263.py b/leetcode/263.py
new file mode 100644
index 0000000..8d05eaf
--- /dev/null
+++ b/leetcode/263.py
@@ -0,0 +1,16 @@
+# Ugly number
+# If positive number n has prime factors limited to 2, 3 and 5,
+# it's a ugly prime
+# -2^31 <= n <= 2^31 - 1
+
+
+class Solution:
+    def isUgly(self, n: int) -> bool:
+        if n <= 0:
+            return False
+
+        for p in [2, 3, 5]:
+            while n % p == 0:
+                n = n // p
+
+        return n == 1