Divisor 13263

To determine if any number is divisible by 13263, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 4421 - then it is divisible by 13263.

The following tests must pass:

• Test if a number is divisible by 3
• The "Oliver Morrish Test" for Divisibility by 4421

Easy!