From 97fbe845e5dfdbda22521117c1783e1fd8515952 Mon Sep 17 00:00:00 2001
From: Scott Gasch <scott@gasch.org>
Date: Mon, 12 Jul 2021 20:52:49 -0700
Subject: Random changes.

---
 math_utils.py | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'math_utils.py')

diff --git a/math_utils.py b/math_utils.py
index 2e12699..56fb707 100644
--- a/math_utils.py
+++ b/math_utils.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 
+import functools
 import math
 from typing import List
 from heapq import heappush, heappop
@@ -60,6 +61,7 @@ def truncate_float(n: float, decimals: int = 2):
     return int(n * multiplier) / multiplier
 
 
+@functools.lru_cache(maxsize=1024, typed=True)
 def is_prime(n: int) -> bool:
     """Returns True if n is prime and False otherwise"""
     if not isinstance(n, int):
-- 
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