Select 2 unique numbers from 1 to 405
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 81,810 (~82 thousand)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 163,620 (~164 thousand)
If order does not matter (e.g. most lottery numbers): 81,810 (~82 thousand)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 163,620 (~164 thousand)