Divisor 21236

To determine if any number is divisible by 21236, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 4 and 5309 - then it is divisible by 21236.

The following tests must pass:

• Test if a number is divisible by 4
• The "Hans Knecht Test" for Divisibility by 5309

Easy!