Select 20 unique numbers from 5 to 550
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 1,602,389,778,390,369,667,681,551,048,863,907,840 (~1.6023897783904E+18 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 3,898,457,309,727,651,565,370,386,093,827,350,858,344,958,693,849,694,208 (~3.8984573097277E+36 million trillion)
If order does not matter (e.g. most lottery numbers): 1,602,389,778,390,369,667,681,551,048,863,907,840 (~1.6023897783904E+18 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 3,898,457,309,727,651,565,370,386,093,827,350,858,344,958,693,849,694,208 (~3.8984573097277E+36 million trillion)