Divisor 17653

To determine if any number is divisible by 17653, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 127 and 139 - then it is divisible by 17653.

The following tests must pass:

• Test if a number is divisible by 127
• Test if a number is divisible by 139

Easy!