Select 20 unique numbers from 1 to 20
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 1
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 2,432,902,008,176,640,000 (~2.4 million trillion)
If order does not matter (e.g. most lottery numbers): 1
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 2,432,902,008,176,640,000 (~2.4 million trillion)