Select 2 unique numbers from 1 to 10000000000000000000000000000000000000000000000000000000000000000000000000000000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 49,999,999,999,999,997,643,667,726,825,605,503,998,723,091,390,929,041,589,542,693,874,892,976,119,602,893,534,497,849,501,708,255,388,193,655,030,747,466,210,492,481,655,783,901,101,005,318,643,863,821,221,888 (~5.0E+139 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 99,999,999,999,999,995,287,335,453,651,211,007,997,446,182,781,858,083,179,085,387,749,785,952,239,205,787,068,995,699,003,416,510,776,387,310,061,494,932,420,984,963,311,567,802,202,010,637,287,727,642,443,776 (~1.0E+140 million trillion)
If order does not matter (e.g. most lottery numbers): 49,999,999,999,999,997,643,667,726,825,605,503,998,723,091,390,929,041,589,542,693,874,892,976,119,602,893,534,497,849,501,708,255,388,193,655,030,747,466,210,492,481,655,783,901,101,005,318,643,863,821,221,888 (~5.0E+139 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 99,999,999,999,999,995,287,335,453,651,211,007,997,446,182,781,858,083,179,085,387,749,785,952,239,205,787,068,995,699,003,416,510,776,387,310,061,494,932,420,984,963,311,567,802,202,010,637,287,727,642,443,776 (~1.0E+140 million trillion)
