A four-digit perfect square number is created by placing two positive two-digit perfect square numbers next to each other. What is the four-digit square number?

Question

asked Jun 16, 2021 113k views

1 Answer

Charwyn · Answer 1 · 2021-06-22T17:48:13+0000

Answer:

1681

Explanation:

In a four digit perfect square, the first two digits and last two digits taken seperately are also perfect squares.

Therefore, the answer is 1681 because 1681=41*41 and

16=4*4 and 81=9*9