Select 20 unique numbers from 1 to 1000000000000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 411,031,762,253,120,501,238,637,998,880,257,737,936,562,872,851,532,929,669,243,082,372,478,801,341,448,273,601,126,316,094,391,289,519,327,393,793,948,465,944,708,516,443,847,585,930,163,498,557,074,392,077,217,754,079,978,874,981,310,198,410,544,397,455,698,168,835,787,964,819,749,541,511,168 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 999,999,999,809,999,860,308,084,705,281,471,809,293,883,788,941,201,855,647,244,654,190,350,325,355,276,800,950,566,606,437,636,399,287,089,017,254,541,613,481,641,100,972,340,148,681,502,502,211,856,863,922,038,994,006,367,839,843,741,003,006,282,671,578,023,356,640,466,635,300,007,036,823,230,133,706,055,321,911,296 (~)
If order does not matter (e.g. most lottery numbers): 411,031,762,253,120,501,238,637,998,880,257,737,936,562,872,851,532,929,669,243,082,372,478,801,341,448,273,601,126,316,094,391,289,519,327,393,793,948,465,944,708,516,443,847,585,930,163,498,557,074,392,077,217,754,079,978,874,981,310,198,410,544,397,455,698,168,835,787,964,819,749,541,511,168 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 999,999,999,809,999,860,308,084,705,281,471,809,293,883,788,941,201,855,647,244,654,190,350,325,355,276,800,950,566,606,437,636,399,287,089,017,254,541,613,481,641,100,972,340,148,681,502,502,211,856,863,922,038,994,006,367,839,843,741,003,006,282,671,578,023,356,640,466,635,300,007,036,823,230,133,706,055,321,911,296 (~)
