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Factors of 56: Prime Factorization, Methods, Tree, and Examples

In the field of mathematics, factorization is the process of breaking a larger number into pairs of two smaller numbers. Factors of a number are termed as its divisors such that these are the set of positive and negative numbers that completely divide the given number.
Factors of fifty six

Figure 1 – All possible Factors of 56

Factors of 56 are referred to as a set of integers that when divided by the number 56, result in producing a perfect whole-number quotient, leaving a zero remainder behind. For example,  \[ \dfrac {56}{2} = 28, r=0 \] As, the number 56 is completely divided by 2, and no remainder is left behind, therefore, the number 2 is referred to as a well-defined factor of 56. What are the factors? How to calculate the factors of a given number? How to find the factor pairs of m? How to calculate the factors of m through prime factorization? These are all the problems that will be covered in depth, in the following article.

What Are the Factors of 56?

The factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56. The value 56 is the biggest factor of number 56. Given that, all the aforementioned numbers are the set of whole numbers that when present in pairs, resulting in producing 56 as their product.  Since 56 is an even composite number, it has more factors besides simply itself and 1.  In other words, the total number of factors of number 56 is 8, as stated above.

How To Calculate the Factors of 56?

You can calculate the factors of 56 by determining the whole numbers that are completely divisible by 56. The division and multiplication procedures are the two primary methods used to determine the factors of any given integer. Here, in the current article, we are going to use both methods to compute the factors of 56. In the first step, we are going to use the simplest-division methodology to calculate the well-recognized list of factors 56.  Initially, divide 56 with the smallest possible expected factor i.e. 1. Note, whether the answer of the division process is a whole-number quotient or not. If yes, then look for the remainder. Is the remainder of the desired division process zero?
Factor of fifty six division method

Figure 2 – Division Method of 56

Yes, the remainder is zero. Also, the result of the division is a perfect whole-number quotient. Hence, the number is a well-defined factor of 56.  Now, divide 56 by the number 2 shown in figure 2: 
Factor of fifty six division process

Figure 3 – Division Process of 56

In addition, as the remainder of the above division process is zero, therefore, 2 is also referred to as the well-recognized factor of 56.  Continue to divide 56 by the remaining set of numbers using the method described above. \[ \dfrac {56}{4} = 14 \] \[ \dfrac {56}{7} = 8 \] Hence, Factors of 56 = 1, 2, 4, 7, 8, 14, 28, 56  The number 56 has both positive and negative integer factors, just like all the other numbers. The only difference between the two sets of factors is the sign. The negative factors of 56 are those integers that, when stated as a mathematical symbol, include a minus sign in addition to the suggested arithmetical value.  In simple words, the negative factors of 56 are referred to as the additive inverse of its positive factors. The following is the list of the negative factors of 56. Negative Factors of 56 = -1, -2, -4, -7, -8, -14, -28, -56 Similarly, the following is the list of the positive factors of 56. Positive Factors of 56 = 1, 2, 4, 7, 8, 14, 28, 56  Now, let’s start the multiplication of 56 by the different sets of integers. The following is the list of pair-multiplication for the number 56,

1 x 56 = 56 

Similarly, the further factors are given as:

2 x 28 = 56 

4 x 14 = 56 

7 x 8 = 56 

Hence, it has been seen that the numbers 1, 2, 4, 7, 8, 14, 28, and 56 are the factors of 56.

Factors of 56 by Prime Factorization

Prime factorization is the process of splitting a number into its prime or distinct prime factors. Given that, the prime factors of a given number are a set of prime numbers that when multiplied together in pairs, resulting in the original number to which they are a factor.  Besides, division and multiplication, prime factorization is also a widely used technique used to find the well-recognized factors of a number.  Here, we are going to use the famous upside-down methodology to determine the factors of 56 by prime factorization. The following technique is also referred to as the ladder method since the division is shown visually in a ladder-like fashion.
Prime factorization of fifty six

Figure 4 – Prime Factorization of 56

The prime factorization of 56 can also be expressed as the following expression,

2 x 2 x 2 x 7 = 56 

Hence, there are 4 prime factors of 56.  Here are a few fun facts regarding the factors of 56,
  • The factors of 56, just like the factors of any other number, can never be fractions or decimals. 
  • The sum of the factors of 56 is given as follows,

(1+2+4+7+8+14+28+56) = 120 

  • The prime factors of 56 are also termed as the distinct prime factors such that there are only 2 distinct factors of the number 56. 
Distinct Prime Factors of 56 = 2, 7 The prime factor of a given number (m) can be any integer that satisfies the requirements outlined in the definition of prime factors, but never 0 or 1, as these values are not properly characterized as prime numbers.

Factor Tree of 56

A factor tree is a geometric portrayal of a number’s factors in which the prime factors are represented through its branches such that, these factors may be any number other than one.  To ascertain a number’s nature, a factor tree is employed. It may foretell if a number is square, cubic, or prime. The factor tree may also be used to determine the L.C.M and H.C.F.  The following image shows the factor tree of the number 56.
Factor tree of fifty six

Figure 5 – Factor Tree of 56

The factors of the given number are represented in each row of the factor tree however, the well-defined set of prime factors for the number 56 is created by combining the last known factor i.e. number 7 (shown on the right side of the figure) with the numbers listed in the left column i.e. 2, 2, 2. Also, it is visible from the factor tree that the number 56 is non-prime.

Factors of 56 in Pairs

As was already mentioned above, when two factors of a given number (m) are multiplied in pairs, the outcome of the multiplication is the original number. Now, the question that arises here is what are these pairs termed as?  The answer to the above question is pair of factors. Yes, the pairs that combine to produce the original number are referred to as the factor pairs or pairs of factors.   The method used to get the factor pairs of 56 is the same one used to find the factor pairs of any other number. As a result, the pair of factors of the number 56 are shown as,
Factor pair of fifty six

Figure 6 – Factor Pair of 56

Where, (1, 56), (2, 28), (4, 14), and (7, 8) are the factor pairs of 56.

1 x 56 = 56 

2 x 28 = 56 

4 x 14 = 56 

7 x 8 = 56 

Hence, the positive factor pairs of the number 56 are given as: Positive Factor Pairs of 56 = (1, 56), (2, 28), (4, 14), (7, 8)  The pair of factors are described in terms of both the positive and negative integers.  Therefore, the negative factor pairs of 56 are given as: Negative Factor Pairs of 56 = (-1,-56), (-2, -28), (-4, -14), (-7,-8) 

Factors of 56 Solved Examples

Now, let us solve a few examples to test our understanding of the above article.

Example 1

Samir wants to find out which two odd numbers, from 1 to 9, are not a factor of 56. Can you help her in finding the correct answer?

Solution

Given that: The factors’ list of 56 is given as: Factors of 56 = 1, 2, 4, 7, 8, 14, 28, 56  From the aforementioned list, we can clearly say that the numbers 3 and 5 are the two odd numbers, from 1 to 9 that are not factors of 56.

Example 2

Windy wants to calculate the H.C.F of the numbers 26 and 56. Can you help her in finding the correct answer?

Solution

Given that: The factors’ list of 26 is given as: Factors of 26 = 1, 2, 13, 26  The factors’ list of 56 is given as: Factors of 56 = 1, 2, 4, 7, 8, 14, 28, 56  According to the definition of H.C.F, the largest number that divides both the numbers 26 and 56 completely, is termed as their H.C.F.  Therefore, the H.C.F of 26 and 56 are: H.C.F = 2  Images/mathematical drawings are created with GeoGebra. 

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