The number, , is a to pandigital number because it is made up of each of the digits to in some order, but it also has a rather interesting sub-string divisibility property.
Let be the st digit, be the nd digit, and so on. In this way, we note the following:
is divisible by
is divisible by
is divisible by
is divisible by
is divisible by
is divisible by
is divisible by
Find the sum of all to pandigital numbers with this property.
Write-up coming later
The complete problem is available here. An approach, code, and answer will be added later.