Divisor 20617

To determine if any number is divisible by 20617, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 53 and 389 - then it is divisible by 20617.

The following tests must pass:

• Test if a number is divisible by 53
• Test if a number is divisible by 389

Easy!