Select 400 unique numbers from 1 to 4
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 10,827,401 (~11 million)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 6,668,014,432,879,854,274,079,851,790,721,257,797,144,758,322,315,908,160,396,257,811,764,037,237,817,632,071,521,432,200,871,554,290,742,929,910,593,433,240,445,888,801,654,119,365,080,363,356,052,330,830,046,095,157,579,514,014,558,463,078,285,911,814,024,728,965,016,135,886,601,981,690,748,037,476,461,291,163,877,376 (~)
If order does not matter (e.g. most lottery numbers): 10,827,401 (~11 million)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 6,668,014,432,879,854,274,079,851,790,721,257,797,144,758,322,315,908,160,396,257,811,764,037,237,817,632,071,521,432,200,871,554,290,742,929,910,593,433,240,445,888,801,654,119,365,080,363,356,052,330,830,046,095,157,579,514,014,558,463,078,285,911,814,024,728,965,016,135,886,601,981,690,748,037,476,461,291,163,877,376 (~)