Divisor 16009

To determine if any number is divisible by 16009, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 7 and 2287 - then it is divisible by 16009.

The following tests must pass:

• Test if a number is divisible by 7
• The "Matthew Thomas Test" for Divisibility by 2287

Easy!