Divisor 19573

To determine if any number is divisible by 19573, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 529 and 37 - then it is divisible by 19573.

The following tests must pass:

• Test if a number is divisible by 529
• Test if a number is divisible by 37

Easy!