1. ## number system

There is a number 2^n. when its digits are reversed it becomes 2^m.Find the least possible value of n.

2. ## Re: number system

Hello, geniusgarvil!

Where did this problem come from?

$\text{There is a number }2^n.\;\text{When its digits are reversed it, becomes }2^m.$
$\text{Find the least possible value of }n.$

We want a power-of-two which is the reversal of a power-of-two.

Without initiating a computer search,
. . it seems that only answers are one-digit values.

3. ## Re: number system

I am not getting this , you should discuss problem with good theory so I can give a better solution. in my opinion power of integer shows it's multiple and it's a short form of any large number most probably used in algebra, linear equation and differential equation problems.how to do pre algebra

4. ## Re: number system

This seems like quite the silly problem because n=0 works just fine