These games include a counter that displays the number of ways you have in each round. However, multiplying the spaces in each reel can also determine the number of winning possibilities.
Consider the following scenario:
There are two symbols on reel one.
There are three symbols on Reel 2.
There are four symbols on reel three.
There are six symbols on reel four.
There are seven symbols on reel 5.
There are five symbols on Reel 6.
2 × 3 x 4 x 6 x 7 x 5 = 5,040 possible combinations