Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-electronics-3f45371ee459

What is decimal 9 in binary?

1001.

Start playing free

  1. 1001 ✔
  2. 1011
  3. 1100

Why: Decimal 9 equals 8 plus 1, which is written as 1001 in binary.

Huh, didn't know that: Decimal 9 equals 8 plus 1, which is written as 1001 in binary.

The dad joke
Nine is feeling fine in binary.
Like this card?
Play the game

References

Answer: 1001. Decimal 9 equals 8 plus 1, which is written as 1001 in binary.

  1. Scouting America: Electronics www.scouting.org/merit-badges/electronics
    three binary numbers into decimal numbers
    Checked 2026-11-07.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

EngineeringWhat should you do before soldering or repairing an electronic device?EngineeringWhich symbol set shows resistors, capacitors, and transistors correctly?EngineeringWhy label every part on a schematic diagram?

That's stuff everyone should know.