Divisor 21339

To determine if any number is divisible by 21339, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 9 and 2371 - then it is divisible by 21339.

The following tests must pass:

• Test if a number is divisible by 9
• The "Lee Peltz Test" for Divisibility by 2371

Easy!