Select 18 unique numbers from 600 to 900
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 38,255,563,930,499,151,287,252,156,416 (~38255563930.5 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 244,926,416,606,424,259,892,545,945,873,870,205,610,885,120 (~2.4492641660642E+26 million trillion)
If order does not matter (e.g. most lottery numbers): 38,255,563,930,499,151,287,252,156,416 (~38255563930.5 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 244,926,416,606,424,259,892,545,945,873,870,205,610,885,120 (~2.4492641660642E+26 million trillion)