diff --git a/problem_4.py b/problem_4.py
new file mode 100644
index 0000000..c0fc66f
--- /dev/null
+++ b/problem_4.py
@@ -0,0 +1,24 @@
+import math
+
+
+def isPalindrome(number):
+    num_str = str(number)
+
+    if len(num_str) % 2 != 0:
+        return False
+
+    for i in range(0, int(len(num_str) / 2)):
+        if num_str[i] != num_str[len(num_str) - (i + 1)]:
+            return False
+
+    return True
+
+
+largest_number = 0
+
+for x in range(0, 999):
+    for y in range(0, 999):
+        if isPalindrome(x * y) and largest_number < x * y:
+            largest_number = x * y
+
+print(largest_number)
\ No newline at end of file