2000 PMWC Problems/Problem I6

Problem

$p$ is the product of two $4$-digit numbers formed by the digits $1,2,3,4,5,6,7,8$ without any repetition. Find the largest value of $p$ in the form of $\Box\Box\Box\Box\times\Box\Box\Box\Box$. (You are not required to multiply the numbers).

Solution

See Also