We select 4 numbers out of 37 according to the rule of multiplication of successive actions:
1 number - 37 options
2 number - 36 options
3 number - 35 options
4 number - 34 options to choose from
N = 37*36*35*34 = 1'585'080 combinations of 4 numbers, excluding permutations.
Since the order of numbers in the group is not important for the bet (2,3,30,17 = 17,2,30,3), then the combinatorics
combination formula:
We can choose 4 numbers out of 37 without repetitions With
4 37 = 37! / (4! * (37-4)!) = 66'045 ways.