What is the binary code for twenty?

Answer 1

00101 converting numbers to binary code is simple and fun. write the number you want to know and divide the number by 2 dropping the remainder if there is one ex. 21 becomes 10 because 21 divided by 2 is 10 remainder 1. divide by two until the answer is '1'. now after each even number write a '0' and after each odd number write a '1'. starting from the top read the ones and zeros downward. here's 20 and then 144 20 0 10 0 5 1 2 0 1 1 read down "00101" 144 0 72 0 36 0 18 0 9 1 4 0 2 0 1 1 read down "00001001"