Divisor 15009

To determine if any number is divisible by 15009, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 5003 - then it is divisible by 15009.

The following tests must pass:

• Test if a number is divisible by 3
• The "Nate Platt Test" for Divisibility by 5003

Easy!