--description--

Take the number 6 and multiply it by each of 1273 and 9854:

$$\begin{align} & 6 × 1273 = 7638 \\ & 6 × 9854 = 59124 \\ \end{align}$$

By concatenating these products we get the 1 to 9 pandigital 763859124. We will call 763859124 the "concatenated product of 6 and (1273, 9854)". Notice too, that the concatenation of the input numbers, 612739854, is also 1 to 9 pandigital.

The same can be done for 0 to 9 pandigital numbers.

What is the largest 0 to 9 pandigital 10-digit concatenated product of an integer with two or more other integers, such that the concatenation of the input numbers is also a 0 to 9 pandigital 10-digit number?

--hints--

largestPandigital() should return 9857164023.

assert.strictEqual(largestPandigital(), 9857164023);

--seed--

--seed-contents--

function largestPandigital() {

  return true;
}

largestPandigital();

--solutions--

// solution required