The “CNTL. NO” (control number) is a four-digit number concealed under the latex in one of the Play Areas on the front of the ticket. One of the ways a retailer can check to see if a ticket is a winner is to scan the barcode on the back of the ticket and manually enter the Control Number.
Until a ticket is scratched, the retailer cannot complete the validation to determine whether a ticket has won a prize. Because the control number is related to the validation, these numbers are not part of the game and can’t be used to win a prize.