Select 20 unique numbers from 1 to 10000000000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 41,103,175,452,161,293,102,241,788,044,875,711,752,771,432,070,874,499,038,322,499,783,565,781,974,770,723,333,136,151,127,714,264,246,486,480,906,178,302,494,522,428,147,073,806,126,132,196,017,193,110,456,340,075,045,129,313,677,542,948,864 (~4.1103175452161E+163 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 99,999,998,099,999,979,850,535,329,858,046,573,613,614,442,961,128,013,458,803,757,624,578,388,668,230,668,778,757,230,995,282,449,881,593,061,547,601,243,110,151,349,829,157,281,791,730,008,112,205,335,992,627,074,583,796,193,290,560,695,805,701,454,273,500,413,952 (~9.99999981E+181 million trillion)
If order does not matter (e.g. most lottery numbers): 41,103,175,452,161,293,102,241,788,044,875,711,752,771,432,070,874,499,038,322,499,783,565,781,974,770,723,333,136,151,127,714,264,246,486,480,906,178,302,494,522,428,147,073,806,126,132,196,017,193,110,456,340,075,045,129,313,677,542,948,864 (~4.1103175452161E+163 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 99,999,998,099,999,979,850,535,329,858,046,573,613,614,442,961,128,013,458,803,757,624,578,388,668,230,668,778,757,230,995,282,449,881,593,061,547,601,243,110,151,349,829,157,281,791,730,008,112,205,335,992,627,074,583,796,193,290,560,695,805,701,454,273,500,413,952 (~9.99999981E+181 million trillion)
