Divisor 16623

To determine if any number is divisible by 16623, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 9 and 1847 - then it is divisible by 16623.

The following tests must pass:

• Test if a number is divisible by 9
• The "Scott Panton Test" for Divisibility by 1847

Easy!