Divisor 23915

To determine if any number is divisible by 23915, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 5 and 4783 - then it is divisible by 23915.

The following tests must pass:

• Test if a number is divisible by 5
• The "Anthony Test" for Divisibility by 4783

Easy!