In the binary number system, the right most bit (the bit with the lowest weighting of 1) is known as the least significant bit (lsb). For example:
10000101 lsb = 1 11000100 lsb = 0 1101 lsb = 0 1100 lsb = 1
It is useful to know that all odd-integer values have a ‘1’ as a lsb.