Question 1
(POL) Find the smallest natural number $n$ with the following properties:
(a) In decimal representation it ends with $6$.
(b) If we move this digit to the front of the number, we get a number $4$ times larger.
(a) In decimal representation it ends with $6$.
(b) If we move this digit to the front of the number, we get a number $4$ times larger.