Divisor 24401

To determine if any number is divisible by 24401, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 13 and 1877 - then it is divisible by 24401.

The following tests must pass:

• Test if a number is divisible by 13
• The "Sam Bolduan Test" for Divisibility by 1877

Easy!