Select 2 unique numbers from 1 to 100000000000000000000000000000000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 5,000,000,000,000,000,837,352,913,712,723,443,463,348,705,714,481,334,561,837,940,736 (~5.0E+45 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 10,000,000,000,000,001,674,705,827,425,446,886,926,697,411,428,962,669,123,675,881,472 (~1.0E+46 million trillion)
If order does not matter (e.g. most lottery numbers): 5,000,000,000,000,000,837,352,913,712,723,443,463,348,705,714,481,334,561,837,940,736 (~5.0E+45 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 10,000,000,000,000,001,674,705,827,425,446,886,926,697,411,428,962,669,123,675,881,472 (~1.0E+46 million trillion)