Base 10

The column that is used when we write a number has a specific meaning. From right to left the columns are:

  1. The number of 1s or 100
  2. The number of 10s or 101
  3. The number of 100s or 102
  4. The number of 1000s or 103

And so on.

This is not a surprise. The first column is the number of digits. The second column represents the number of times we have used up all our 10 digits and so on.

Next: Base 2