Divisor 16509

To determine if any number is divisible by 16509, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 5503 - then it is divisible by 16509.

The following tests must pass:

• Test if a number is divisible by 3
• The "Aaron Zoll Test" for Divisibility by 5503

Easy!