Select 20 unique numbers from 1 to 999999
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 410,945,454,134,030,111,515,772,202,834,819,035,827,480,748,618,164,403,412,660,410,184,398,123,057,915,265,278,956,080,979,821,723,648 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 999,790,020,613,743,438,742,569,386,461,429,112,024,746,281,437,370,612,381,856,632,806,609,947,540,634,518,788,125,705,352,171,900,288,546,590,917,885,165,568 (~)
If order does not matter (e.g. most lottery numbers): 410,945,454,134,030,111,515,772,202,834,819,035,827,480,748,618,164,403,412,660,410,184,398,123,057,915,265,278,956,080,979,821,723,648 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 999,790,020,613,743,438,742,569,386,461,429,112,024,746,281,437,370,612,381,856,632,806,609,947,540,634,518,788,125,705,352,171,900,288,546,590,917,885,165,568 (~)
