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7 grade maths

Find the square root by prime factorization method of 1156.

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9 Months agoGrade
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1 Answer

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ApprovedApproved Tutor Answer9 Months ago

To find the square root of 1156 using the prime factorization method, we first need to break down the number into its prime factors.

Step 1: Prime Factorization

We start by dividing 1156 by the smallest prime number, which is 2:

  • 1156 ÷ 2 = 578
  • 578 ÷ 2 = 289

Next, we factor 289:

  • 289 ÷ 17 = 17
  • 17 ÷ 17 = 1

Thus, the prime factorization of 1156 is:

2 × 2 × 17 × 17 or 2² × 17².

Step 2: Finding the Square Root

To find the square root, we take one of each pair of prime factors:

  • From 2², we take 2.
  • From 17², we take 17.

Now, we multiply these results:

2 × 17 = 34.

Final Result

The square root of 1156 is 34.