Select 15 unique numbers from 1 to 20
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 15,504 (~15.5 thousand)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 20,274,183,401,472,000 (~20.3 thousand trillion)
If order does not matter (e.g. most lottery numbers): 15,504 (~15.5 thousand)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 20,274,183,401,472,000 (~20.3 thousand trillion)