Select 20 unique numbers from 20 to 99
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 3,535,316,142,212,173,824 (~3.5 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 8,601,077,741,927,288,943,903,251,461,534,908,416 (~8.6010777419273E+18 million trillion)
If order does not matter (e.g. most lottery numbers): 3,535,316,142,212,173,824 (~3.5 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 8,601,077,741,927,288,943,903,251,461,534,908,416 (~8.6010777419273E+18 million trillion)