Question

Is 26894 a perfect square?​

Answer 1

Answer:

no is it not a perfect square

Answer 2

Answer:: NO

Step-by-step explanation:

Step 1:

What is the last number of 2,684? It is this number: 2684. The answer is 4. Is 4 in the list of numbers that are never perfect squares (2, 3, 7 or 8)?

Step 2:

We now need to obtain the digital root of the number. Here's how you do it:

Split the number up and add each digit together:

2 + 6 + 8 + 4 = 20

If the answer is more than one digit, you would add each digit of the answer together again:

2 + 0 = 2

Step 3:

So now we know the digital root of 2,684 is 2. Is 2 in the list of digital roots that are always a square root (1, 4, 7 or 9)?

Answer: NO, 2 is not in the list of digital roots that are always perfect squares. We can conclude that 2,684 IS NOT a perfect square and we don't need to factor!