The binary number system uses ___ as the base number. what is the correct answer?

In the binary number system, there are only 2 possible values for any digit. Thus, the base number for the binary number system is 2.

Another way to think of this is, the base number is the number that looks like 10. The first few binary numbers are these:

zero -> 0

one -> 1

two -> 10

three -> 11

etc.

Two is the number that looks like 10, so 2 must be the base number.

I hope this helps!

The answer lies in the meaning of 'binary'. If you're familiar with Star Wars, think of Tatooine's binary star system (how many suns it has).

2 you also read binary from right to left:)

Thank you for your answers.