Select 2 unique numbers from 1 to 21000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 220,489,500 (~220.5 million)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 440,979,000 (~441 million)
If order does not matter (e.g. most lottery numbers): 220,489,500 (~220.5 million)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 440,979,000 (~441 million)