diff --git a/programmers/나머지가 1이 되는 수 찾기/solution.py b/programmers/나머지가 1이 되는 수 찾기/solution.py
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+++ b/programmers/나머지가 1이 되는 수 찾기/solution.py	
@@ -0,0 +1,9 @@
+// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/87389?language=python3
+
+def solution(n):
+    answer = 0
+    for i in range(n):
+        if(n%(i+1)==1):
+            answer = i+1;
+            break;
+    return answer
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