Select 20 unique numbers from 1 to 1000000000000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 411,031,762,253,120,420,975,333,837,070,359,250,982,981,896,287,069,649,176,997,555,895,826,892,493,167,892,303,333,434,364,032,065,372,804,318,269,222,342,486,106,086,387,417,261,939,998,821,888,010,002,075,877,807,018,030,009,472,960,227,842,788,589,988,174,002,608,305,013,201,230,052,196,352 (~4.1103176225312E+203 million trillion)
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 (~9.9999999981E+221 million trillion)
If order does not matter (e.g. most lottery numbers): 411,031,762,253,120,420,975,333,837,070,359,250,982,981,896,287,069,649,176,997,555,895,826,892,493,167,892,303,333,434,364,032,065,372,804,318,269,222,342,486,106,086,387,417,261,939,998,821,888,010,002,075,877,807,018,030,009,472,960,227,842,788,589,988,174,002,608,305,013,201,230,052,196,352 (~4.1103176225312E+203 million trillion)
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 (~9.9999999981E+221 million trillion)
