Divisor 21745

To determine if any number is divisible by 21745, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 5 and 4349 - then it is divisible by 21745.

The following tests must pass:

• Test if a number is divisible by 5
• The "Michael Jones Test" for Divisibility by 4349

Easy!