Divisor 1357

To determine if any number is divisible by 1357, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 23 and 59 - then it is divisible by 1357.

The following tests must pass:

• Test if a number is divisible by 23
• Test if a number is divisible by 59

Easy!