What is the square root of 81

The square root of 81 is 9. The square root of a number is the number which is multiplied by itself two times for example a number 3 is multiplied by itself like 3×3=9. Means 3 is the square root of 9. Similarly, 9×9=81 means 9 is the square root of 81.

Method to find square root of 81

  • By Prime Factorization Method
  • By Direct Division Method

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