The binary equivalent of decimal 13 is?

To find the binary equivalent of a decimal number like 13, we divide the number by 2 repeatedly and note the remainders at each step. The remainders are then read in reverse order to get the binary number.

Let’s convert 13 to binary:

13 ÷ 2 = 6 → remainder 1
6 ÷ 2 = 3 → remainder 0
3 ÷ 2 = 1 → remainder 1
1 ÷ 2 = 0 → remainder 1

Now, write the remainders from bottom to top: 1 1 0 1
So, the binary of 13 is 1101.