Express 100111base to base 10

To convert the number 100111 base 2 to base 10, we can follow the step-by-step process:

1. Start by writing down the place values of each digit in the base 2 number: 2^5, 2^4, 2^3, 2^2, 2^1, 2^0.
2. Write down the given base 2 number below the place values: 100111.
3. Multiply each digit of the base 2 number with its corresponding place value and add the results together.

The calculation would be as follows:
(1 * 2^5) + (0 * 2^4) + (0 * 2^3) + (1 * 2^2) + (1 * 2^1) + (1 * 2^0)

= (1 * 32) + (0 * 16) + (0 * 8) + (1 * 4) + (1 * 2) + (1 * 1)

= 32 + 0 + 0 + 4 + 2 + 1

= 39

So, the base 10 equivalent of 100111 base 2 is 39.