Digit Factorials
$145$ is a curious number, as $1! + 4! + 5! = 1 + 24 + 120 = 145$.
Find the sum of all numbers which are equal to the sum of the factorial of their digits.
Note: As $1! = 1$ and $2! = 2$ are not sums they are not included.
$145$ is a curious number, as $1! + 4! + 5! = 1 + 24 + 120 = 145$.
Find the sum of all numbers which are equal to the sum of the factorial of their digits.
Note: As $1! = 1$ and $2! = 2$ are not sums they are not included.