Select 15 unique numbers from 2 to 20
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 3,876
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 5,068,545,850,368,000 (~5.1 thousand trillion)
If order does not matter (e.g. most lottery numbers): 3,876
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 5,068,545,850,368,000 (~5.1 thousand trillion)