Select 18 unique numbers from 1 to 99
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 25,144,898,858,450,337,792 (~25.1 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 160,987,039,284,532,441,067,298,939,056,685,056 (~1.6098703928453E+17 million trillion)
If order does not matter (e.g. most lottery numbers): 25,144,898,858,450,337,792 (~25.1 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 160,987,039,284,532,441,067,298,939,056,685,056 (~1.6098703928453E+17 million trillion)