What is 99 in BINARY?

Answer 1

The decimal number 99 is 1100011 in binary.

The possible decimal values for the binary number 1100011 progress as follows, starting from the rightmost (and least significant) bit:

1 2 4 8 16 32 64 , or when read backwards are

64 32 16 8 4 2 1

3 of the 7 bits in the binary number 1100011 (numeric radix 2) are zeroes, and have no value. Let's add from most significant bit to least, as in the second example:

64 + 32 + nothing + nothing + nothing + 2 + 1

or

64 + 32 + 0 + 0 + 0 + 2 + 1 = 99 in decimal (numeric radix 10)

If you use the "calculator" utility on your home computer, you can change it from standard to scientific in the "view" pulldown menu. The default system of this calculator utility is decimal, the number system we are accustomed to. Type in the number 99, then click the soft button "Bin" for binary, and the display will change to 1100011.