It may be a "NumLock" problem. And I will include the instructions on that below.... However, since it is brand new, and if the info provided isn't the issue, then you should be contacting where you purchased it or the manufacturer to have them repair or replace it.
A. You can try this shortcut, press (together) the Fn + Nmlk keys.
B. You can also try disabling it in the registry...
1. Press the Windows key + R to bring up the Run box.
2. Type "regedit" and press "Enter" to open the Windows "Registry Editor".
3. In the "Registry Editor", open the following registry key.
HKEY_USER\.Default\Control Panel\Keyboard\
4. In the keyboard folder, you should see a string value named “InitialKeyboardIndicators” with a value of 0, 1, or 2...