Select 20 unique numbers from 0000001 to 9999999
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 41,102,313,074,894,121,196,894,895,867,125,984,688,160,217,148,463,495,337,396,259,109,185,764,036,777,331,324,671,399,931,101,423,491,316,445,868,054,357,737,472 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 99,997,900,020,614,892,093,445,932,343,223,691,801,663,700,370,096,170,915,223,533,155,409,017,637,491,145,972,737,158,085,621,980,206,355,419,284,281,345,546,411,994,749,093,927,714,816 (~)
If order does not matter (e.g. most lottery numbers): 41,102,313,074,894,121,196,894,895,867,125,984,688,160,217,148,463,495,337,396,259,109,185,764,036,777,331,324,671,399,931,101,423,491,316,445,868,054,357,737,472 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 99,997,900,020,614,892,093,445,932,343,223,691,801,663,700,370,096,170,915,223,533,155,409,017,637,491,145,972,737,158,085,621,980,206,355,419,284,281,345,546,411,994,749,093,927,714,816 (~)