Divisor 9974

To determine if any number is divisible by 9974, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 2 and 4987 - then it is divisible by 9974.

The following tests must pass:

• Test if a number is divisible by 2
• The "Markus B Test" for Divisibility by 4987

Easy!