Question

1. Check whether 7779 is a perfect square or not.

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Answer 1

Answer:

no

Step-by-step explanation:

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:

7 + 7 + 7 + 9 = 30

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

3 + 0 = 3

What is the digital root of number 7,779?

Answer: 3