Select 2 unique numbers from 1 to 555
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 153,735 (~153.7 thousand)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 307,470 (~307.5 thousand)
If order does not matter (e.g. most lottery numbers): 153,735 (~153.7 thousand)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 307,470 (~307.5 thousand)