Select 21 unique numbers from 2 to 99
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 1,270,891,593,430,793,715,712 (~1270.9 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 64,931,048,906,484,347,092,367,824,510,578,400,952,320 (~6.4931048906484E+22 million trillion)
If order does not matter (e.g. most lottery numbers): 1,270,891,593,430,793,715,712 (~1270.9 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 64,931,048,906,484,347,092,367,824,510,578,400,952,320 (~6.4931048906484E+22 million trillion)