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Problem 4


Problem 4


Largest palindrome product

A palindromic number reads the same both ways. The largest palindrome made from the product of two $2$-digit numbers is $9009 = 91 \times 99$.

Find the largest palindrome made from the product of two $3$-digit numbers.


最大回文乘积

回文数就是从前往后读和从后往前读都一样的数。由两个$2$位数相乘得到的最大的回文数是 $9009 = 91 \times 99$。

求由两个$3$位数相乘得到的最大的回文数。