Count in binary.

[Evil Captain Odyssey]

If you don't know how to count in binary, think of it as creating the next largest number that you're able to come up with using only 0s and 1s.

0.

 

[Rick the Door Technician]

1

 

[MiracleDinner]

10

 

[Rick the Door Technician]

11

 

[Evil Captain Odyssey]

100

 

[MiracleDinner]

101

 

[Rick the Door Technician]

111

 

[MiracleDinner]

111

That should be 110. 101 = 5, 110 = 6, 111 = 7.

111.

 

[Zdrmonster Productions]

1000

 

[Evil Captain Odyssey]

1001