Divisor 24039

To determine if any number is divisible by 24039, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 9 and 2671 - then it is divisible by 24039.

The following tests must pass:

• Test if a number is divisible by 9
• The "Zachary Read Test" for Divisibility by 2671

Easy!