Divisor 15545

To determine if any number is divisible by 15545, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 5 and 3109 - then it is divisible by 15545.

The following tests must pass:

• Test if a number is divisible by 5
• The "Stuart Orford Test" for Divisibility by 3109

Easy!