diff --git a/.gitignore b/.gitignore
index ccb638a..c33b761 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 output/
 .*.cache/
-vendor/
\ No newline at end of file
+vendor/
+tools/
\ No newline at end of file
diff --git a/.phive/phars.xml b/.phive/phars.xml
new file mode 100644
index 0000000..f21864c
--- /dev/null
+++ b/.phive/phars.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phive xmlns="https://phar.io/phive">
+  <phar name="phpunit" version="^12.2.2" installed="12.2.2" location="./tools/phpunit" copy="false"/>
+</phive>
diff --git a/solutions/Generic/MultiTable/desc.yml b/solutions/Generic/MultiTable/desc.yml
new file mode 100644
index 0000000..8327cfd
--- /dev/null
+++ b/solutions/Generic/MultiTable/desc.yml
@@ -0,0 +1,9 @@
+title: Multiplication table
+
+
+desc: Building a multiplication table in C
+
+solutions:
+  solve.c:
+    desc: ANSI C solution (Tested with TCC)
+    language: c
diff --git a/solutions/Generic/Seive/desc.yml b/solutions/Generic/Seive/desc.yml
index 66efe5c..d2637d0 100644
--- a/solutions/Generic/Seive/desc.yml
+++ b/solutions/Generic/Seive/desc.yml
@@ -1,7 +1,7 @@
 title: Sieve of Eratosthenes
 url: http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes
 
-desc:Generate primes from 2 to 100
+desc: Generate primes from 2 to 100
 solution: Do i need to say more
 
 solutions:
diff --git a/src/Numerical.php b/src/Numerical.php
index 6274710..8706fc8 100644
--- a/src/Numerical.php
+++ b/src/Numerical.php
@@ -8,12 +8,12 @@ class Numerical
 {
     public static function isPandigital(int $input): bool
     {
-        return self::isDigitsPresent($input, [49 => 1, 50 => 1, 51 => 1, 52 => 1, 53 => 1, 54 => 1, 55 => 1, 56 => 1, 57 => 1]);
+        return self::isDigitsPresent($input, [0x31 => 1, 0x32 => 1, 0x33 => 1, 0x34 => 1, 0x35 => 1, 0x36 => 1, 0x37 => 1, 0x38 => 1, 0x39 => 1]);
     }
 
     public static function isPandigitalWithZero(int $input): bool
     {
-        return self::isDigitsPresent($input, [48 => 0, 49 => 1, 50 => 1, 51 => 1, 52 => 1, 53 => 1, 54 => 1, 55 => 1, 56 => 1, 57 => 1]);
+        return self::isDigitsPresent($input, [0x30 => 1, 0x31 => 1, 0x32 => 1, 0x33 => 1, 0x34 => 1, 0x35 => 1, 0x36 => 1, 0x37 => 1, 0x38 => 1, 0x39 => 1]);
     }
 
     private static function isDigitsPresent(int $input, array $count): bool
diff --git a/tests/PrimeTest.php b/tests/PrimeTest.php
index 5fd270f..653dcab 100644
--- a/tests/PrimeTest.php
+++ b/tests/PrimeTest.php
@@ -12,12 +12,20 @@ use CodingTests\Prime;
 #[CoversClass(Prime::class)]
 final class PrimeTest extends \PHPUnit\Framework\TestCase
 {
-    public function isPandigital(): void
+    static $primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97];
+    public function testisPrime(): void
     {
-        $primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97];
         for ($test = -100; $test <= 100; $test++) {
             $ret = Prime::isPrime($test);
-            $this->assertEquals(in_array($test, $primes), $ret, "Testing $test");
+            $this->assertEquals(in_array($test, self::$primes), $ret, "Testing $test");
+        }
+    }
+
+    public function testis_prime(): void
+    {
+        for ($test = -100; $test <= 100; $test++) {
+            $ret = Prime::isPrime($test);
+            $this->assertEquals(in_array($test, self::$primes), $ret, "Testing $test");
         }
     }
 }