Divisor 21583

To determine if any number is divisible by 21583, you must apply 2 tests successively. If all of them 'pass' - that is, if your number is divisible by 113 and 191 - then it is divisible by 21583.

The following tests must pass:

• Test if a number is divisible by 113
• Test if a number is divisible by 191

Easy!