From c913c09b41d418865a3bf11c14d76538f30489de Mon Sep 17 00:00:00 2001
From: Christopher Fremond <34804391+Frenchris@users.noreply.github.com>
Date: Mon, 12 Jul 2021 12:37:28 +0100
Subject: [PATCH] Update README.md

---
 subjects/isprime/README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/subjects/isprime/README.md b/subjects/isprime/README.md
index ec0c648c..9d65db8d 100644
--- a/subjects/isprime/README.md
+++ b/subjects/isprime/README.md
@@ -8,6 +8,8 @@ The function must be optimized in order to avoid time-outs with the tester.
 
 (We consider that only positive numbers can be prime numbers)
 
+(We also consider that 1 is **not** a prime number)
+
 ### Expected function
 
 ```go