Maximum absolute number size - 32 binary IEEE representation.
  0 1111 1110 1111 1111 1111 1111 1111 111

  Remember all 1s in exponent is special flag

Exponent
  8 bit biased exponent   2^(8-1)-1 = 127 bias

  1111 1110  = 254
           b

  254 - 127 = 127   2^127

Signficand
  1111 1111 1111 1111 1111 111 = 23 bit mantissa

  1.1111 1111 1111 1111 1111 111 = with significant bit.

  If in decimal, it can be shown that 9 = 10^1 - 10^0

  Then
    The binary above is 10 - 0.0000 0000 0000 0000 0000 001  or 2^1 - 2^-23
                          b                                b

Maximum absolute size is (2^1 - 2^-23)* 2^127  or  2^128 - 2^104