Divisor 17221

To determine if any number is divisible by 17221, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 17 and 1013 - then it is divisible by 17221.

The following tests must pass:

• Test if a number is divisible by 17
• The "Jonny Lundell Test" for Divisibility by 1013

Easy!