Divisor 25257

To determine if any number is divisible by 25257, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 8419 - then it is divisible by 25257.

The following tests must pass:

• Test if a number is divisible by 3
• The "Jim Renney Test" for Divisibility by 8419

Easy!