Select 20 unique numbers from 1 to 18
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 15,905,368,710 (~16 billion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 12,748,236,216,396,078,139,834,368 (~13 septillion)
If order does not matter (e.g. most lottery numbers): 15,905,368,710 (~16 billion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 12,748,236,216,396,078,139,834,368 (~13 septillion)