BrightChamps Logo
Login
Creative Math Ideas Image
Live Math Learners Count Icon104 Learners

Last updated on May 26th, 2025

Math Whiteboard Illustration

Square Root of 4900

Professor Greenline Explaining Math Concepts

If a number is multiplied by itself, the result is a square. The inverse of a square is a square root. The square root is used in various fields including vehicle design and finance. Here, we will discuss the square root of 4900.

Square Root of 4900 for Saudi Students
Professor Greenline from BrightChamps

What is the Square Root of 4900?

The square root is the inverse of squaring a number. 4900 is a perfect square. The square root of 4900 can be expressed in both radical and exponential forms. In radical form, it is expressed as √4900, whereas in exponential form it is (4900)^(1/2). √4900 = 70, which is a rational number because it can be expressed in the form of p/q, where p and q are integers with q ≠ 0.

Professor Greenline from BrightChamps

Finding the Square Root of 4900

For perfect square numbers like 4900, the prime factorization method is often used. We can also use the long division method and approximation method, though they are more common for non-perfect squares. Let us explore these methods:

 

  • Prime factorization method
  • Long division method
  • Approximation method
Professor Greenline from BrightChamps

Square Root of 4900 by Prime Factorization Method

The product of prime factors is the prime factorization of a number. Let us break down 4900 into its prime factors:

 

Step 1: Finding the prime factors of 4900

 

Breaking it down, we get 2 × 2 × 5 × 5 × 7 × 7: 2^2 × 5^2 × 7^2

 

Step 2: Now that we have found the prime factors of 4900, we make pairs of those prime factors. Since 4900 is a perfect square, the digits of the number can be grouped in pairs. Therefore, the square root of 4900 using prime factorization is possible. Thus, √4900 = √(2^2 × 5^2 × 7^2) = 2 × 5 × 7 = 70.

Professor Greenline from BrightChamps

Square Root of 4900 by Long Division Method

The long division method can also be used for finding the square root of perfect square numbers. Let us learn how to find the square root using the long division method, step by step:

 

Step 1: To begin, we need to group the numbers from right to left in pairs. In the case of 4900, we group it as 49 and 00.

 

Step 2: Now we find a number whose square is less than or equal to 49. The number is 7 because 7 × 7 = 49. The quotient is 7, and the remainder is 0.

 

Step 3: Now, bring down the next pair of zeros, making it 00.

 

Step 4: Add the old divisor with the same number, 7 + 7 = 14, which will be our new divisor.

 

Step 5: Determine a number n such that 14n × n is less than or equal to 00. Here n is 0, because 140 × 0 = 0.

 

Step 6: Subtracting gives us 0 as the remainder.

 

Step 7: The quotient is 70, which is the square root of 4900.

Professor Greenline from BrightChamps

Square Root of 4900 by Approximation Method

The approximation method is straightforward for finding square roots. Let us learn how to find the square root of 4900 using this method:

 

Step 1: Find the closest perfect squares to √4900. The closest perfect squares are 4900 itself (exact) and no need for approximation.

 

Step 2: √4900 = 70 since it is a perfect square.

Max Pointing Out Common Math Mistakes

Common Mistakes and How to Avoid Them in the Square Root of 4900

Students often make mistakes while finding square roots, such as forgetting about the negative square root or applying incorrect methods. Let's look at a few common mistakes in detail.

Mistake 1

Red Cross Icon Indicating Mistakes to Avoid in This Math Topic

Forgetting about the negative square root

Green Checkmark Icon Indicating Correct Solutions in This Math Topic

It is important to remember that numbers have both positive and negative square roots. However, we generally consider only the positive square root, as it is usually required.

 

For example: √4900 = 70, but -70 is also a square root that should not be forgotten.

Max from BrightChamps Saying "Hey"

Square root of 4900 Examples

Ray, the Character from BrightChamps Explaining Math Concepts
Max, the Girl Character from BrightChamps

Problem 1

Can you help Max find the area of a square box if its side length is given as √4900?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

The area of the square is 4900 square units.

Explanation

The area of a square is calculated as side^2.

The side length is given as √4900.

Area of the square = (√4900) × (√4900) = 70 × 70 = 4900

Therefore, the area of the square box is 4900 square units.

Max from BrightChamps Praising Clear Math Explanations
Max, the Girl Character from BrightChamps

Problem 2

A square-shaped building measuring 4900 square feet is built; if each of its sides is √4900, what will be the square feet of half of the building?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

2450 square feet

Explanation

Since the building is square-shaped, we divide the given area by 2.

Dividing 4900 by 2 gives us 2450.

So, half of the building measures 2450 square feet.

Max from BrightChamps Praising Clear Math Explanations
Max, the Girl Character from BrightChamps

Problem 3

Calculate √4900 × 5.

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

350

Explanation

The first step is finding the square root of 4900, which is 70.

The second step is multiplying 70 by 5.

So, 70 × 5 = 350.

Max from BrightChamps Praising Clear Math Explanations
Max, the Girl Character from BrightChamps

Problem 4

What will be the square root of (4900 + 100)?

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

The square root is 71.

Explanation

First, find the sum of (4900 + 100) = 5000.

Then find the square root of 5000.

5000 is not a perfect square, but it is close to 4900.

You can approximate it by noting that √4900 = 70 and √5000 is slightly more than 70, approximately 71.

Max from BrightChamps Praising Clear Math Explanations
Max, the Girl Character from BrightChamps

Problem 5

Find the perimeter of the rectangle if its length ‘l’ is √4900 units and the width ‘w’ is 38 units.

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

We find the perimeter of the rectangle as 216 units.

Explanation

Perimeter of the rectangle = 2 × (length + width)

Perimeter = 2 × (√4900 + 38) = 2 × (70 + 38) = 2 × 108 = 216 units.

Max from BrightChamps Praising Clear Math Explanations
Ray Thinking Deeply About Math Problems

FAQ on Square Root of 4900

1.What is √4900 in its simplest form?

Math FAQ Answers Dropdown Arrow

2.Mention the factors of 4900.

Math FAQ Answers Dropdown Arrow

3.Calculate the square of 4900.

Math FAQ Answers Dropdown Arrow

4.Is 4900 a prime number?

Math FAQ Answers Dropdown Arrow

5.4900 is divisible by?

Math FAQ Answers Dropdown Arrow

6.How does learning Algebra help students in Saudi Arabia make better decisions in daily life?

Math FAQ Answers Dropdown Arrow

7.How can cultural or local activities in Saudi Arabia support learning Algebra topics such as Square Root of 4900?

Math FAQ Answers Dropdown Arrow

8.How do technology and digital tools in Saudi Arabia support learning Algebra and Square Root of 4900?

Math FAQ Answers Dropdown Arrow

9.Does learning Algebra support future career opportunities for students in Saudi Arabia?

Math FAQ Answers Dropdown Arrow
Professor Greenline from BrightChamps

Important Glossaries for the Square Root of 4900

  • Square Root: A square root is the value that, when multiplied by itself, gives the original number. Example: 70 × 70 = 4900, so √4900 = 70.

 

  • Perfect Square: A number that is the square of an integer. 4900 is a perfect square because it equals 70^2.

 

  • Rational Number: A number that can be expressed as the quotient or fraction p/q of two integers, where q is not zero. 70 is a rational number.

 

  • Factorization: The process of breaking down a number into its prime components. For example, the prime factorization of 4900 is 2^2 × 5^2 × 7^2.

 

  • Perimeter: The total distance around a two-dimensional shape. For example, the perimeter of a rectangle is calculated as 2 × (length + width).
Professor Greenline from BrightChamps

About BrightChamps in Saudi Arabia

At BrightChamps, we recognize algebra as more than just symbols—it’s a key to unlock countless opportunities! Our goal is to help children across Saudi Arabia gain important math skills, focusing today on the Square Root of 4900 with special attention to square roots—in a way that’s engaging, lively, and easy to grasp. Whether your child is calculating the speed of a roller coaster at Riyadh’s Al Hokair Land, following scores at local football matches, or managing their allowance for the latest gadgets, mastering algebra boosts their confidence for daily challenges. Our interactive lessons make learning accessible and fun. Since children in Saudi Arabia learn in different ways, we tailor lessons to suit each learner. From Riyadh’s bustling streets to Jeddah’s historic landmarks, BrightChamps brings math to life, making it exciting and relevant all over Saudi Arabia. Let’s make square roots a fun part of every child’s math adventure!
Math Teacher Background Image
Math Teacher Image

Jaskaran Singh Saluja

About the Author

Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.

Math Teacher Fun Facts Image
Max, the Girl Character from BrightChamps

Fun Fact

: He loves to play the quiz with kids through algebra to make kids love it.

INDONESIA - Axa Tower 45th floor, JL prof. Dr Satrio Kav. 18, Kel. Karet Kuningan, Kec. Setiabudi, Kota Adm. Jakarta Selatan, Prov. DKI Jakarta
INDIA - H.No. 8-2-699/1, SyNo. 346, Rd No. 12, Banjara Hills, Hyderabad, Telangana - 500034
SINGAPORE - 60 Paya Lebar Road #05-16, Paya Lebar Square, Singapore (409051)
USA - 251, Little Falls Drive, Wilmington, Delaware 19808
VIETNAM (Office 1) - Hung Vuong Building, 670 Ba Thang Hai, ward 14, district 10, Ho Chi Minh City
VIETNAM (Office 2) - 143 Nguyễn Thị Thập, Khu đô thị Him Lam, Quận 7, Thành phố Hồ Chí Minh 700000, Vietnam
Dubai - BrightChamps, 8W building 5th Floor, DAFZ, Dubai, United Arab Emirates
UK - Ground floor, Redwood House, Brotherswood Court, Almondsbury Business Park, Bristol, BS32 4QW, United Kingdom