Divisor 15303

To determine if any number is divisible by 15303, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 3 and 5101 - then it is divisible by 15303.

The following tests must pass:

• Test if a number is divisible by 3
• The "IS4 Test" for Divisibility by 5101

Easy!