From 0301175d9939ccb2ef05d92035a53f03a6ddb988 Mon Sep 17 00:00:00 2001
From: Vipin Karthic <vipinkarthic17112005@gmail.com>
Date: Tue, 10 Oct 2023 13:38:32 +0530
Subject: [PATCH] Added doctests to carmichael_number.py

---
 maths/carmichael_number.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/maths/carmichael_number.py b/maths/carmichael_number.py
index 81712520f..dff0204b9 100644
--- a/maths/carmichael_number.py
+++ b/maths/carmichael_number.py
@@ -24,6 +24,20 @@ def power(x: int, y: int, mod: int) -> int:
 
 
 def is_carmichael_number(n: int) -> bool:
+    """
+    Doctests :
+    >>> is_carmichael_number(561)
+    True
+    >>> is_carmichael_number(1105)
+    True
+    >>> is_carmichael_number(4)
+    False
+    >>> is_carmichael_number(8911)
+    True
+    >>> is_carmichael_number(900)
+    False
+    """
+
     b = 2
     while b < n:
         if greatest_common_divisor(b, n) == 1 and power(b, n - 1, n) != 1: