Divisor 25587

To determine if any number is divisible by 25587, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 9 and 2843 - then it is divisible by 25587.

The following tests must pass:

• Test if a number is divisible by 9
• The "Origami Alice Zhang Test" for Divisibility by 2843

Easy!