Divisor 16819

To determine if any number is divisible by 16819, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 121 and 139 - then it is divisible by 16819.

The following tests must pass:

• Test if a number is divisible by 121
• Test if a number is divisible by 139

Easy!