Divisor 1813

To determine if any number is divisible by 1813, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 49 and 37 - then it is divisible by 1813.

The following tests must pass:

• Test if a number is divisible by 49
• Test if a number is divisible by 37

Easy!