2016 Update

Task/Lucas-Lehmer-test/PowerShell/lucas-lehmer-test-1.psh

@@ -0,0 +1,28 @@
+function Get-MersennePrime ([bigint]$Maximum = 4800)
+{
+    [bigint]$n = [bigint]::One
+
+    for ($exp = 2; $exp -lt $Maximum; $exp++)
+    {
+        if ($exp -eq 2)
+        {
+            $s = 0
+        }
+        else
+        {
+            $s = 4
+        }
+
+        $n = ($n + 1) * 2 - 1
+
+        for ($i = 1; $i -le $exp - 2; $i++)
+        {
+            $s = ($s * $s - 2) % $n
+        }
+
+        if ($s -eq 0)
+        {
+            $exp
+        }
+    }
+}

Task/Lucas-Lehmer-test/PowerShell/lucas-lehmer-test-2.psh

@@ -0,0 +1 @@
+Get-MersennePrime | Format-Wide {"{0,4}" -f $_} -Column 4 -Force