The jackpot is triggered by a specific combination of symbols on the reels. When you pull the lever or push the button, the random number generator generates a mixture of symbols. If the given combination matches the jackpot combination, you win big time.

If the order of the lottery number doesn't make a difference, then each lottery number is called a combination of numbers, and we calculate the probability of winning the lottery using the following formula: a n C r , where nCr is the number of combinations possible of the lottery number, and. r ! ( n " r ) ! .