Divisor 17553

To determine if any number is divisible by 17553, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 5851 - then it is divisible by 17553.

The following tests must pass:

• Test if a number is divisible by 3
• The "Ian Butland Test" for Divisibility by 5851

Easy!