Question

write the smallest three digit number which doesn't change even if the digit are written in reverse order///////(the answer is 101 but I want the formula)​

Answer 1

Answer:

101 is the smallest 3 digit number which does not change if digits are written in reverse order.

Answer 2

Answer:

$\huge\color{indigo}{\mid{\fbox{\tt{αηsωεя}}\mid}}$

000 is the smallest and if more go in to negative numbers like - 111 and more.