Is there a way to allow only even numbers?

Hi,

I need the user to only input even numbers. The options are too long to list in a dropdown list. 
Can I check user input to only allow even numbers?

Thank you.

Do you mean 11 digits instead?

You can use the input mask:

Or the max size property:

You can test the form and mouse over the fields for more information:

http://form.jotformpro.com/form/50224694262958? 

Let us know if we can assist you further.  

Hi,

That's great to know but I meant even numbers as in 2, 4, 6, 8, etc... 

I do not think that we have such fields with limited inputs, but it is possible to check if the value is even/odd using conditional logic on form.

Example:

Here we forward the value to the Even field if it ends with 0, 2, 4, 6 or 8.

http://form.jotformpro.com/form/50255312602947

Is this something that can be used on your form?

Yep, that's perfect. 
Thank you!