Select 10 unique numbers from 1 to 1000000000000000000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 275,573,192,239,858,927,175,013,067,742,026,464,285,734,279,616,645,104,553,874,370,547,120,080,737,199,556,173,193,228,187,341,576,607,714,917,923,596,644,491,991,593,181,113,095,246,697,134,059,063,804,610,952,454,423,042,850,816 (~2.7557319223986E+155 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,000,000,000,000,000,124,420,739,160,197,425,844,515,996,138,418,682,202,971,767,617,162,472,313,087,461,048,171,496,973,832,591,686,703,523,441,303,946,932,181,669,110,304,353,046,386,505,486,683,968,030,751,317,933,599,854,699,447,582,720 (~1.0E+162 million trillion)
If order does not matter (e.g. most lottery numbers): 275,573,192,239,858,927,175,013,067,742,026,464,285,734,279,616,645,104,553,874,370,547,120,080,737,199,556,173,193,228,187,341,576,607,714,917,923,596,644,491,991,593,181,113,095,246,697,134,059,063,804,610,952,454,423,042,850,816 (~2.7557319223986E+155 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,000,000,000,000,000,124,420,739,160,197,425,844,515,996,138,418,682,202,971,767,617,162,472,313,087,461,048,171,496,973,832,591,686,703,523,441,303,946,932,181,669,110,304,353,046,386,505,486,683,968,030,751,317,933,599,854,699,447,582,720 (~1.0E+162 million trillion)
