Divisor 19287

To determine if any number is divisible by 19287, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 9 and 2143 - then it is divisible by 19287.

The following tests must pass:

• Test if a number is divisible by 9
• The "David James Test" for Divisibility by 2143

Easy!