Factors of 30 are 1, 2, 3, 5, 6, 15 and 30. These numbers can divide the number 30 exactly without any remainder. There are negative and positive pairings of integers that are factors of 30. A negative factor of 30 is a number that has a sign of negative and is a factor of 30, Similarly, the positive factors of 30 are those numbers that have positive signs and are factors of 30.

What are the Factors of 30?

The numbers that divide 30 completely with zero remainders and no decimal points in the quotient are known as the factors of 30. Thus, 1, 2, 3, 5, 6, 10, 15, and 30 are the factors of 30. So, Let’s multiply two pairs of numbers to get 30:

• 1 × 30 = 30
• 2 × 15 = 30
• 3 × 10 = 30
• 5 × 6 = 30

All Factors of 30

The following factors of 30 are:

Factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.

Read More about Factor of a Number.

How to Find Factors of 30?

There are two ways to find the factors of 30:

• Multiplication Method
• Division Method

Let’s discuss both the method in detail.

Factors of 30 using the Multiplication Method

By multiplying any numbers that gives you 30, So, by using different numbers, you can find the pairs of factors and use the multiplication method to get the factors of 30. Let’s see the pairing of numbers in the form of factors of 30:

1. Start with 1 and 30: 1×30=30
2. After that the next pair: 2×15=30
3. Then, Move to the next pair: 3×10=30
4. At last, the pair: 5×6=30

So, These factors of 30 are represented in the pair form of the multiplication method.

Factors of 30 using the Division Method

By dividing 30 by different numbers, you can find the pairs of factors and use the division method to get the factors of 30. So, Let’s see the pairing of numbers in the form of factors of 30:

1. 30÷1=30
2. 30÷2=15
3. 30÷3=10
4. 30÷5=6
5. 30÷6=5
6. 30÷10=3
7. 30÷15=2
8. 30÷30=1

So, These factors of 30 are represented in pair form of the Division method.

Prime Factorization of 30

Prime factorization is the process of representing 30 as a product of its prime factors. Thus, the situation where the number 30 can be expressed as the product of 2, 3, and 5 lies behind the prime factorization of 30.

Therefore prime factorization of 30 is;

30 = 2 × 3 × 5

So, the prime factors of 30 are 2, 3, and 5.

Read More about Prime Factorization.

Prime Factors of 30

As we have seen the prime factorization of 30 is given as;

30 = 2 × 3 × 5

Hence, the Prime factors of 30 are 2, 3 and 5.

Factor Tree of 30

Using the factor tree method, we can also determine the prime factors of the number 30. The following are the steps to use the factor tree approach to identify the prime factors of 30:

• Firstly, Placed the number 30.
• After that, use the pair factor of 3 and 15.
• Then, 3 can’t be divided more because it’s a prime number. So, that will remain as it is, and 15 will be distributed in a pair factor of 2 and 5.
• At last, 2 and 5 are prime numbers, that also cannot be separated.

Factor Pairs of 30

There are two ways to write the factors of 30: positive pairs and negative pairs. Below are the pairs of 30 that are positive and negative:

Positive Factor Pairs of 30

Below are the positive factor pairs of 30.

• 1 × 30 = 30; (1,30)
• 2 × 15 = 30; (2,15)
• 3 × 10 = 30; (3,10)
• 5 × 6 = 30; (5,6)

Negative Factor Pairs of 30

Below are the negative factor pairs of 30.

• -1 × -30 = 30; (-1,-30)
• -2 × -15 = 30; (-2,-15)
• -3 × -10 = 30; (-3,-10)
• -5 × -6 = 30; (-5,-6)

Read More,

• Factors of 12
• Factors of 36
• Factors of 72

Factors of 30 Solved Examples

Example 1: Sonu has (-6) as one of the factors of 30. He wants to find the factor that makes the pair of factors of the number 30 with -6. 

Solution:

To identify the factor that pairs with -6 to give a product of 30, Sonu can divide 30 by -6. In this case, one of the factors of 30 is (-6).

The equation factor 30 ÷ (-6) = (-5) can be solved.

So, the other factor is -5.

Example 2: What is the Sum of all the Factors of 30?

Solution:

Let’s find the sum of all factors of 30, Therefore the factors of 30 are; 1, 2, 3, 5, 6, 10, 15, 30

So, the sum of these factors are 1+2+3+5+6+10+15+30 = 72

So, The total sum of factors of 30 is 72.

Example 3: List the common factors between 30, and 35.

Solution:

We can determine the factors of each number and discover the numbers that they share in order to find the common factors of two numbers. Now let’s locate the factors 35 and 30.

Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
Factors of 35: 1, 5, 7, 35

Therefore, the common factors between 30 and 35 are 1 and 5.

Example 4: If -3 is a factor of 30, what is the other factor in the pair?

Solution:

We can calculate the other part by dividing 30 by -3,

30/-3 = -10.

Therefore, the pair of factors is (-3, -10), as (−3)×(−10) = 30.

Factors of 30 Practice Questions

Q1: Determine the positive factors of 30.

Q2: If 4 is a factor of 30, what is the other factor in the pair?

Q3: List the factors of 30 that are between 5 and 15.

Q4: Find a pair of factors of 30 whose product is 30.

Factors of 30 Frequently Asked Questions

What are the Factors of 30?

The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.

Is 30 a Prime Number?

No, 30 is not a prime number.Even, it’s divisible by 2,3 and 5.

What are the Pair Factors of 30?

The pairs of factors for 30 are (1, 30), (2, 15), (3, 10), and (5, 6).

Write Negative Factors of 30.

The negative factors of 30 are -1, -2, -3, -5, -6, -10, -15, and -30.

What are some Common Factors of 30 and 45?

The common factors of 30 and 45 are 1, 3, 5, and 15.

List the First Five Multiples of 30.

The first five multiples of 30 are;

1. 30 × 1 = 30
2. 30 × 2 = 60
3. 30 × 3 = 90
4. 30 × 4 = 120
5. 30 × 5 = 150

So, the first five multiples are 30, 60, 90, 120 and 150.