Select 18 unique numbers from 1 to 100
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 30,664,510,802,988,208,128 (~30.7 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 196,325,657,664,063,914,727,766,945,395,900,416 (~1.9632565766406E+17 million trillion)
If order does not matter (e.g. most lottery numbers): 30,664,510,802,988,208,128 (~30.7 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 196,325,657,664,063,914,727,766,945,395,900,416 (~1.9632565766406E+17 million trillion)