Divisor 17843

To determine if any number is divisible by 17843, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 7 and 2549 - then it is divisible by 17843.

The following tests must pass:

• Test if a number is divisible by 7
• The "Carleton Torpin Test" for Divisibility by 2549

Easy!