Divisor 23731

To determine if any number is divisible by 23731, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 19 and 1249 - then it is divisible by 23731.

The following tests must pass:

• Test if a number is divisible by 19
• The "Volodymyr Test" for Divisibility by 1249

Easy!