Data commit

Task/Primality-by-trial-division/SQL/primality-by-trial-division.sql

@@ -0,0 +1,29 @@
+declare @number int
+set @number = 514229 -- number to check
+
+;with cte(number) as
+(
+ select 2
+ union all
+ select number+1
+ from cte
+ where number+1 < @number
+)
+select
+      cast(@number as varchar(100)) +
+      case
+          when exists
+				  (
+					select *
+					from
+					(
+						select number, @number % number modNumber
+						from cte
+					) tmp
+					where tmp.modNumber = 0
+				  )
+				          then ' is composite'
+		  else
+						 ' is prime'
+	  end primalityTest
+option (maxrecursion 0)