Current time:0:00Total duration:5:03

0 energy points

# The why of the 3 divisibility rule

Why you can add the digits to see if something is divisible by 3. Created by Sal Khan.

If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains ***.kastatic.org** and ***.kasandbox.org** are unblocked.

Main content
# The why of the 3 divisibility rule

Current time:0:00Total duration:5:03

0 energy points

Why you can add the digits to see if something is divisible by 3. Created by Sal Khan.