Select 18 unique numbers from 1 to 20
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 190
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,216,451,004,088,320,000 (~1.2 million trillion)
If order does not matter (e.g. most lottery numbers): 190
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,216,451,004,088,320,000 (~1.2 million trillion)