diff --git a/com.leetcode.test/java/04-10.java b/com.leetcode.test/java/04-10.java
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..5ac8a109fd30be7c010ee1dfa6e02d4a4d0d892f 100644
--- a/com.leetcode.test/java/04-10.java
+++ b/com.leetcode.test/java/04-10.java
@@ -0,0 +1,18 @@
+class Solution {
+    public boolean isUgly(int n) {
+
+        if(n<1){
+            return false;
+        }
+
+        int[] primes = {2,3,5};
+
+        for(int i:primes){
+            while(n%i == 0){
+                n /= i;
+            }
+        }
+
+        return n == 1;
+    }
+}
\ No newline at end of file