Answer
$2\times2\times3\times3\times7$
Work Step by Step
$2|\underline{252}$ last digit is even
$2|\underline{126}$ last digit is even
$3|\underline{\ \ 63}$ sum of digits is divisible by 3
$3|\underline{\ \ 21}$ sum of digits is divisible by 3
$\ \ \ \ \ \ \ 7$
