Select 1 unique numbers from 9999 to 20
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): -9,978
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): -9,978
If order does not matter (e.g. most lottery numbers): -9,978
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): -9,978
