# Factors of 117

Factors of 117 are 1, 3, 9, 13, 39, and 117

#### How to find factors of a number

 1.   Find factors of 117 using Division Method 2.   Find factors of 117 using Prime Factorization 3.   Find factors of 117 in Pairs 4.   How can factors be defined? 5.   Frequently asked questions 6.   Examples of factors

### Example: Find factors of 117

• Divide 117 by 1: 117 ÷ 1 : Remainder = 0
• Divide 117 by 3: 117 ÷ 3 : Remainder = 0
• Divide 117 by 9: 117 ÷ 9 : Remainder = 0
• Divide 117 by 13: 117 ÷ 13 : Remainder = 0
• Divide 117 by 39: 117 ÷ 39 : Remainder = 0
• Divide 117 by 117: 117 ÷ 117 : Remainder = 0

Hence, Factors of 117 are 1, 3, 9, 13, 39, and 117

#### 2. Steps to find factors of 117 using Prime Factorization

A prime number is a number that has exactly two factors, 1 and the number itself. Prime factorization of a number means breaking down of the number into the form of products of its prime factors.

There are two different methods that can be used for the prime factorization.

#### Method 1: Division Method

To find the primefactors of 117 using the division method, follow these steps:

• Step 1. Start dividing 117 by the smallest prime number, i.e., 2, 3, 5, and so on. Find the smallest prime factor of the number.
• Step 2. After finding the smallest prime factor of the number 117, which is 3. Divide 117 by 3 to obtain the quotient (39).
117 ÷ 3 = 39
• Step 3. Repeat step 1 with the obtained quotient (39).
39 ÷ 3 = 13
13 ÷ 13 = 1

So, the prime factorization of 117 is, 117 = 3 x 3 x 13.

#### Method 2: Factor Tree Method

We can follow the same procedure using the factor tree of 117 as shown below:

So, the prime factorization of 117 is, 117 = 3 x 3 x 13.

#### 3. Find factors of 117 in Pairs

Pair factors of a number are any two numbers which, which on multiplying together, give that number as a result. The pair factors of 117 would be the two numbers which, when multiplied, give 117 as the result.

The following table represents the calculation of factors of 117 in pairs:

Factor Pair Pair Factorization
1 and 117 1 x 117 = 117
3 and 39 3 x 39 = 117
9 and 13 9 x 13 = 117

Since the product of two negative numbers gives a positive number, the product of the negative values of both the numbers in a pair factor will also give 117. They are called negative pair factors.

Hence, the negative pairs of 117 would be ( -1 , -117 ) , ( -3 , -39 ) and ( -9 , -13 ) .

#### How do you explain factors?

In mathematics, a factor is a number or also it can be an algebraic expression that divides another number or any expression completely and that too without leaving any remainder. A factor of a number can be positive or negative.

#### Properties of factors

• Every factor of a number is an exact divisor of that number, example 1, 3, 9, 13, 39, 117 are exact divisors of 117.
• Every number other than 1 has at least two factors, namely the number itself and 1.
• Each number is a factor of itself. Eg. 117 is a factor of itself.
• 1 is a factor of every number. Eg. 1 is a factor of 117.

• Which is the smallest prime factor of 117?

Smallest prime factor of 117 is 3.

• Is 117 a perfect square?

No 117 is not a perfect square.

• What are five multiples of 117?

First five multiples of 117 are 234, 351, 468, 585, 702.

• What is prime factorization of 117?

Prime factorization of 117 is 3 x 3 x 13.

• What are factors of 117?

Factors of 117 are 1, 3, 9, 13, 39, 117.

• How do you find factors of a negative number? ( eg. -117 )?

Factors of -117 are -1, -3, -9, -13, -39, -117.

• Is 117 a whole number?

Yes 117 is a whole number.

• Which is greatest factor of 117?

The greatest factor of 117 is 39.

• What are the prime factors of 117?

The factors of 117 are 1, 3, 9, 13, 39, 117.
Prime factors of 117 are 3, 3, 13.

#### Examples of Factors

Ariel has been assigned the task to find the product of all the prime factors of 117. Can you help her?

Prime factors of 117 are 3, 3, 13.
Hence, the product of prime factors of 39.

Can you help Rubel to find out the product of the even factors of 117?

Factors of 117 are 1, 3, 9, 13, 39, 117.
Even factors of 117 are 0.
Hence, product of even factors of 117 is; 0 = 0.

Joy wants to calculate mean of all the factors of 117. Help him in finding the mean of 117.

Factors of 117 are 1, 3, 9, 13, 39, 117.
To calculate the mean we need to calculate the sum of factors first. Sum of factors of 117 is 1 + 3 + 9 + 13 + 39 + 117 = 182.
Hence, the mean of factors of 117 is 182 ÷ 6 = 30.33.

Annie's mathematics teacher has asked her to find out all the positive and negative factors of 117? Help her in writing all the factors.

Positive factors are 1, 3, 9, 13, 39, 117.
Negative factors are -1, -3, -9, -13, -39, -117.

How many factors are there for 117?

Factors of 117 are 1, 3, 9, 13, 39, 117.
So there are in total 6 factors.

Joey wants to write all the prime factors of 117 in exponential form, but he doesn't know how to do so can you assist him in this task?

Prime factors of 117 are 3, 3, 13.
So in exponential form it can be written as 32 x 13.

Kevin has been asked to write 5 factor(s) of 117. Can you predict the answer?

5 factor(s) of 117 are 1, 3, 9, 13, 39.