Divisor 20278

To determine if any number is divisible by 20278, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 2 and 10139 - then it is divisible by 20278.

The following tests must pass:

• Test if a number is divisible by 2
• The "Pepijn Schmitz Test" for Divisibility by 10139

Easy!