Select 20 unique numbers from 1 to 649
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 53,744,402,125,680,644,056,948,518,744,951,357,440 (~5.3744402125681E+19 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 130,754,863,859,821,311,809,721,690,287,992,314,502,660,408,809,648,816,128 (~1.3075486385982E+38 million trillion)
If order does not matter (e.g. most lottery numbers): 53,744,402,125,680,644,056,948,518,744,951,357,440 (~5.3744402125681E+19 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 130,754,863,859,821,311,809,721,690,287,992,314,502,660,408,809,648,816,128 (~1.3075486385982E+38 million trillion)