pandigitalPrime(4)
should return a number.
testString: assert(typeof pandigitalPrime(4) === 'number');
- text: pandigitalPrime(4)
should return 4231.
testString: assert(pandigitalPrime(4) == 4231);
- text: pandigitalPrime(7)
should return 7652413.
testString: assert(pandigitalPrime(7) == 7652413);
```