Divisibility tests for 3, 4, 6, 9, 12 |

[@aljongarcia4630]

how about po yung sa 7? paano malalaman kung divisible sa 7?

[@khunniebuck8986]

It has 3 rules.
You double the last digit.
Subtract to the remaining numbers. The answer should be divisible by 7.

[@abegaillagera21]

How about big numbers na po? like more divisible than 12 ?