Select 21 unique numbers from 1 to 100
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 2,041,841,411,062,132,375,552 (~2041.8 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 104,319,601,456,377,003,868,978,260,845,514,926,850,048 (~1.0431960145638E+23 million trillion)
If order does not matter (e.g. most lottery numbers): 2,041,841,411,062,132,375,552 (~2041.8 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 104,319,601,456,377,003,868,978,260,845,514,926,850,048 (~1.0431960145638E+23 million trillion)
