diff --git a/Algo/Séminaire/Exercices seminaire.md b/Algo/Séminaire/Exercices seminaire.md
index df799dc..71fb4e4 100644
--- a/Algo/Séminaire/Exercices seminaire.md	
+++ b/Algo/Séminaire/Exercices seminaire.md	
@@ -450,4 +450,5 @@ let prime n =
 	if n < 1 then
 		invalid_args "n should not be inferior to zero"
 	else if x = 2 then true
-	
+	else 
+		let rec pr a