Divisor 19743

To determine if any number is divisible by 19743, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 6581 - then it is divisible by 19743.

The following tests must pass:

• Test if a number is divisible by 3
• The "Musiu3D Test" for Divisibility by 6581

Easy!