Divisor 9945

Prime Number:
No

Test for Divisibility by 9945

To determine if any number is divisible by 9945, you must apply 4 tests successively. If all of them 'pass' - that is, if your number is divisible by 9 and 5 and 13 and 17 - then it is divisible by 9945.

The following tests must pass:

Easy!