# Square of four digit number whose digits are same

Let us consider the 4-digit number as aaaa. Let’s see how the square of the number looks like:

Example:

$$5555^{2}$$ = $$5^{2}$$ / 2$$(5^{2})$$ / 3$$(5^{2})$$ / 4$$(5^{2})$$ / 3$$(5^{2})$$ / 2$$(6^{2})$$ / $$6^{2}$$ = 25 / 50 / 75 / 100 / 75 / 50 / 25 = 30858025