Divisor 5091

To determine if any number is divisible by 5091, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 1697 - then it is divisible by 5091.

The following tests must pass:

• Test if a number is divisible by 3
• The "Tiago Test" for Divisibility by 1697

Easy!