Which one is visa number?

I'm applying for a job and it asks for my visa number. I want to be sure I enter the right thing! Is it the number typed in red at the top right of the visa or is it the long number at the bottom which includes your passport number, birthday, etc?

The visa number is in the top right hand corner

Your VAF is your visa application form number...I would assume that is what they are talking about.  That's the "visa number" I used when I had to contact the consulate with questions after my visa was issued.