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Factors of 868: Prime Factorization, Methods, and Examples
The given number 868 has 12 factors in total. The list of factors consists of all the integers than give zero as a remainder when 868 is divided by them.
on division, the quotient is always a whole number and is also a factor of 868.
Factors of 868
Here are the factors of number 868.
Factors of 868: 1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, and 868.
Negative Factors of 868
The negative factors of 868 are similar to its positive aspects, just with a negative sign.
Negative Factors of 868: -1, -2, -4, -7, -14, -28, -31, -62, -124, -217, -434, and -868
Prime Factorization of 868
The prime factorization of 868 is the way of expressing its prime factors in the product form.
Prime Factorization: 2$^2$ x 7 731
In this article, we will learn about the factors of 868 and how to find them using various techniques such as upside-down division, prime factorization, and factor tree.
What Are the Factors of 868?
The factors of 868 are 1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, and 868. These numbers are the factors as they do not leave any remainder when divided by 868.
The factors of 868 are classified as prime numbers and composite numbers. The prime factors of the number 868 can be determined using the prime factorization technique.
How To Find the Factors of 868?
You can find the factors of 868 by using the rules of divisibility. The divisibility rule states that any number, when divided by any other natural number, is said to be divisible by the number if the quotient is the whole number and the resulting remainder is zero.
To find the factors of 868, create a list containing the numbers that are exactly divisible by 868 with zero remainders. One important thing to note is that 1 and 868 are the 868’s factors as every natural number has 1 and the number itself as its factor.
1 is also called the universal factor of every number. The factors of 868 are determined as follows:
\[\dfrac{868}{1} = 868\]
\[\dfrac{868}{2} = 434\]
\[\dfrac{868}{4} = 217\]
\[\dfrac{868}{7} = 124\]
\[\dfrac{868}{14} = 62\]
\[\dfrac{868}{28} = 31\]
\[\dfrac{868}{31} = 28\]
\[\dfrac{868}{62} = 14\]
\[\dfrac{868}{124} = 7\]
\[\dfrac{868}{217} = 4\]
\[\dfrac{868}{434} = 2\]
\[\dfrac{868}{868} = 1\]
Therefore, 1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, and 868. are the factors of 868.
Total Number of Factors of 868
For 868, there are 12 positive factors and 12 negative ones. So in total, there are 24 factors of 868.
To find the total number of factors of the given number, follow the procedure mentioned below:
- Find the factorization/prime factorization of the given number.
- Demonstrate the prime factorization of the number in the form of exponent form.
- Add 1 to each of the exponents of the prime factor.
- Now, multiply the resulting exponents together. This obtained product is equivalent to the total number of factors of the given number.
By following this procedure, the total number of factors of 868 is given as:
Factorization of 868 is 1 x 2$^2$ x 7 x 31.
The exponent of 1, 7, and 31 is 1 and the exponent of 2 is 2.
Adding 1 to each and multiplying them together results in 24.
Therefore, the total number of factors of 868 is 24. 12 are positive, and 12 factors are negative.
Important Notes
Here are some essential points that must be considered while finding the factors of any given number:
- The factor of any given number must be a whole number.
- The factors of the number cannot be in the form of decimals or fractions.
- Factors can be positive as well as negative.
- Negative factors are the additive inverse of the positive factors of a given number.
- The factor of a number cannot be greater than that number.
- Every even number has 2 as its prime factor, the smallest prime factor.
Factors of 868 by Prime Factorization
The number 868 is a composite number. Prime factorization is a valuable technique for finding the number’s prime factors and expressing the number as the product of its prime factors.
Before finding the factors of 868 using prime factorization, let us find out what prime factors are. Prime factors are the factors of any given number that are only divisible by 1 and themselves.
To start the prime factorization of 868, start dividing by its most minor prime factor. First, determine that the given number is either even or odd. If it is an even number, then 2 will be the smallest prime factor.
Continue splitting the quotient obtained until 1 is received as the quotient. The prime factorization of 868 can be expressed as:
868 = 2$^2$ x 7 x 31
Factors of 868 in Pairs
The factor pairs are the duplet of numbers that, when multiplied together, result in the factorized number. Factor pairs can be more than one depending on the total number of factors given.
For 868, the factor pairs can be found as:
1 x 868 = 868
2 x 434 = 868
4 x 217 = 868
7 x 124 = 868
14 x 62 = 868
28 x 31 = 868
The possible factor pairs of 868 are given as (1, 868), (2, 434), (4, 217), (7, 124), (14, 62) and (28, 31).
All these numbers in pairs, when multiplied, give 868 as the product.
The negative factor pairs of 868 are given as:
-1 x -868 = 868
-2 x -434 = 868
-4 x -217 = 868
-7 x -124 = 868
-14 x -62 = 868
-28 x -31 = 868
It is important to note that in negative factor pairs, the minus sign has been multiplied by the minus sign, due to which the resulting product is the original positive number. Therefore, -1, -2, -4, -7, -14, -28, -31, -62, -124, -217, -434 and -868. are called negative factors of 868.
The list of all the factors of 868, including positive as well as negative numbers, is given below.
Factor list of 868: 1, -1, 2, -2, 4, -4, 7, -7, 14, -14, 28, -28, 31, -31, 62, -62, 124, -124, 217, -217, 434, -434, 868, and -868.
Factors of 868 Solved Examples
To better understand the concept of factors, let’s solve some examples.
Example 1
How many factors of 868 are there?
Solution
The total number of Factors of 868 is 12.
Factors of 868 are 1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434 and 868.
Example 2
Find the factors of 868 using prime factorization.
Solution
The prime factorization of 868 is given as:
868 $\div$ 2= 434
434 $\div$ 2= 217
217 $\div$ 7= 31
31 $\div$ 31 = 1
So the prime factorization of 868 can be written as:
2$^2$ x 7 x 31 = 868