Divisor 15151

To determine if any number is divisible by 15151, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 109 and 139 - then it is divisible by 15151.

The following tests must pass:

• Test if a number is divisible by 109
• Test if a number is divisible by 139

Easy!