Divisor 21759

To determine if any number is divisible by 21759, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 7253 - then it is divisible by 21759.

The following tests must pass:

• Test if a number is divisible by 3
• The "Henrik Skott Test" for Divisibility by 7253

Easy!