Select 20 unique numbers from 1 to 678
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 130,490,972,146,613,821,785,330,243,930,559,610,880 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 317,471,748,184,418,864,229,297,192,187,315,101,701,430,870,574,664,515,584 (~)
If order does not matter (e.g. most lottery numbers): 130,490,972,146,613,821,785,330,243,930,559,610,880 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 317,471,748,184,418,864,229,297,192,187,315,101,701,430,870,574,664,515,584 (~)