Unit digit of the square of 84486

Here we will show you two ways of finding the unit digit of the square of 84486. First, we will define what the unit digit of the square of 84486 means. Next, we will find the unit digit of the square of 84486 using the Rule Method, and then we will find the unit digit of the square of 84486 using the Math Method.

The last digit (one digit) of the product you get when you multiply 84486 by itself is the unit digit of the square of 84486.

Rule Method
The unit digit of any square will never be 2, 3, 7, or 8. It can be only 0, 1, 4, 5, 6, or 9. Furthermore, the unit digit of the square of a number depends on its units digit. In other words, the unit digit of the square of 84486 depends on 6, because that is the last digit in 84486. Here are the rules:

Rule A) If the unit digit of a number is 0, then the unit digit of the square of that number is 0.

Rule B) If the unit digit of a number is 1 or 9, then the unit digit of the square of that number is 1.

Rule C) If the unit digit of a number is 2 or 8, then the unit digit of the square of that number is 4.

Rule D) If the unit digit of a number is 5, then the unit digit of the square of that number is 5.

Rule E) If the unit digit of a number is 4 or 6, then the unit digit of the square of that number is 6.

Rule F) If the unit digit of a number is 3 or 7, then the unit digit of the square of that number is 9.

The unit digit of 84486 is 6, therefore Rule E applies, and the unit digit of the square of 84486 is 6.

Unit digit of the square of 84486 = 6

Math Method
The unit digit of the square of a number depends on its units digit with this method too. Here you multiply the unit digit of the number by itself, and then look at the unit digit of that product. Again, the unit digit of 84486 is 6, so you multiply 6 by itself, and then look at the unit digit to get the answer once again:

6 × 6 = 36
Unit digit of 36 is 6.
Unit digit of the square of 84486 = 6

Of course, instead of using either of the methods above, you can multiply 84486 by itself if you have the time or a calculator, and then identify the unit digit to get the answer to the unit digit of the square of 84486. We did that below to double-check that our answer is correct:

84486 × 84486 = 7137884196
Unit digit of 7137884196 is 6.
Unit digit of the square of 84486 = 6

Unit Digit of the Square Calculator
Please enter another number that we can find the unit digit of the square for.

Unit digit of the square of 84487
Here is the unit digit of the square of the next number on our list.