I wouldn't trust Google when it comes to language. Have you ever tried Google Translate? 
Hey, let's do that!
"Vires in Numeris" -> "Strength in Numbers"
"Vis in Numeris" -> "Do you want in Numbers"
"vis in numeris" -> "to do in the numbers"
Pick your choice.
This sucks! Now I'm totally confused. No wonder the Roman Empire fell. They couldn't even agree on defining a simple phrase. Lucky for US we have...
