Last updated on May 26th, 2025
Factors are the numbers that divide any given number evenly without a remainder. In daily life, we use factors for tasks like sharing items equally, arranging things, etc. In this topic, we will learn about the factors of 30.25, how they are used in real life, and the tips to learn them quickly.
The numbers that divide 30.25 evenly are known as factors of 30.25. A factor of 30.25 is a number that divides the number without a remainder.
Since 30.25 is not a whole number, it is typically considered in terms of its square root or expressed as a fraction.
The number 30.25 can be expressed as \( \sqrt{30.25} = 5.5 \), which implies it can be seen as \( (5.5)^2 \).
Factors of 30.25 depend on its expression as a fraction or its equivalent whole number representation.
Therefore, factors of 30.25 are primarily considered in the context of its square root, 5.5.
Factors can be found using different methods. Mentioned below are some commonly used methods:
To find factors using multiplication, we need to identify the pairs of numbers that are multiplied to give 30.25.
Since 30.25 is not a simple whole number, we often look at it in terms of its square root.
For example, \( 5.5 \times 5.5 = 30.25 \).
Dividing the given number by whole numbers until the remainder becomes zero and listing out the numbers which result as whole numbers as factors.
Since 30.25 is not a whole number, its factors are typically considered in terms of its square root.
For example, \( 30.25 \div 5.5 = 5.5 \).
The factors can be found by dividing with prime numbers. However, for non-whole numbers like 30.25, we recognize the components of its square root.
Using Prime Factorization: In the case of 30.25, since \( \sqrt{30.25} = 5.5 \), we consider 5.5 as a factor of itself.
The factor tree is a method of breaking down a number into prime factors.
For whole numbers, this involves dividing by prime numbers until reaching 1.
Since 30.25 is not a straightforward case for a factor tree, it is more appropriate to consider its expression as \( (5.5)^2 \).
Two numbers that are multiplied to give a specific number are called factor pairs.
For 30.25, a relevant pair is (5.5, 5.5), considering its square root.
Mistakes are common while finding factors. We can identify and correct those mistakes using the following common mistakes and the ways to avoid them.
A round cake has an area of 30.25 square inches. If the diameter of the cake is 5.5 inches, what is the circumference?
The circumference is approximately 17.27 inches.
Using the formula for circumference, \( C = \pi \times d \), where \( d = 5.5 \). \( C = \pi \times 5.5 \approx 17.27 \).
A square garden has an area of 30.25 square meters. What is the length of one side of the garden?
5.5 meters.
Since the garden is a square, each side is the square root of the total area. \( \sqrt{30.25} = 5.5 \).
A rectangular pool has a width of 5.5 meters and an area of 30.25 square meters. What is the length?
5.5 meters.
To find the length, use: Area = length × width 30.25 = length × 5.5 Length = 30.25/5.5 = 5.5.
If a ribbon is 30.25 meters long and is cut into pieces each 5.5 meters long, how many pieces are there?
5 pieces.
Divide the total length by the length of each piece: 30.25/5.5 = 5.
A plot of land is 30.25 square feet. If one side is 5.5 feet, what is the other side of the plot?
5.5 feet.
For a square or a rectangle where one side is known: Area = width × height 30.25 = 5.5 × height Height = 30.25/5.5 = 5.5.
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.