the binary for 25 is 11001
the first thing that you have to do is to divide the number 25 to 2, if you get the answer which was 12 with a remainder of 1, what you have to do is to set aside the number into the next step and set the remainder aside. After that, repeat the same steps until the whole part is zero. Write down all the remainders in reverse so that you can identify the binary number of 25.
here is how you can do it.
25 ÷ 2 = 12 with 1 remainder
12 ÷ 2 = 6 with 0 remainder
6 ÷ 2 = 3 with 0 remainder
3 ÷ 2 = 1 with 1 remainder
1 ÷ 2 = 0 with 1 remainder
Hope that i helped you.
