Divisor 18363

To determine if any number is divisible by 18363, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 6121 - then it is divisible by 18363.

The following tests must pass:

• Test if a number is divisible by 3
• The "Tom Friedman Test" for Divisibility by 6121

Easy!