Divisor 19946

To determine if any number is divisible by 19946, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 2 and 9973 - then it is divisible by 19946.

The following tests must pass:

• Test if a number is divisible by 2
• The "Andrey Feofilaktov Test" for Divisibility by 9973

Easy!