Decimal number as a 4-bit unsigned binary integer?

Question

Is the decimal number 3 as a 4 bit unsigned binary integer 0011? if not what is it and how did you work it out?

Answer 1

Yes it is.

I would use the following table:

8 4 2 1
0 0 1 1

So 2+1 = 3.

13 would be 1101 or 8 + 4 + 1

Same principle can be used for bigger number also.

8 bit numbers would use this table:

msb lsb
128 64 32 16 8 4 2 1

Answer 2

Yes, 0011 is a four-bit binary representation of the number 3.