Divisor 23401

To determine if any number is divisible by 23401, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 7 and 3343 - then it is divisible by 23401.

The following tests must pass:

• Test if a number is divisible by 7
• The "Austin Howard Test" for Divisibility by 3343

Easy!