BASE 16 or THE HEXADECIMAL CODE
let's look at the number system we are most familiar with.
didn’t know it, but our number system
is a "base 10" system. That just means that we
group things together in tens. Take the number 10 for example:
10 stands for 1 group of ten and nothing left over; we say "one ten and no ones".
23 stands for 2 groups of ten and three left over; we say "two tens and three ones".
numbers look like this:
0,1,2,3,4,5,6,7,8,9 and then, since we have one whole
group of “ten”: we write:10—one group
of tens and no ones.