Select 4 unique numbers from 100 to 900
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 17,023,973,400 (~17 billion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 408,575,361,600 (~408.6 billion)
If order does not matter (e.g. most lottery numbers): 17,023,973,400 (~17 billion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 408,575,361,600 (~408.6 billion)