Divisor 16239

To determine if any number is divisible by 16239, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 5413 - then it is divisible by 16239.

The following tests must pass:

• Test if a number is divisible by 3
• The "Alex F Test" for Divisibility by 5413

Easy!