# Factors of 129 in pair

Factors of 129 in pair are (1, 129) , (3, 43)

#### How to find factors of a number in pair

 1.   Steps to find factors of 129 in pair 2.   What is factors of a number in pair? 3.   What are Factors? 4.   Frequently Asked Questions 5.   Examples of factors in pair

### Example: Find factors of 129 in pair

Factor Pair Pair Factorization
1 and 129 1 x 129 = 129
3 and 43 3 x 43 = 129

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 129. They are called negative pair factors.

Hence, the negative pairs of 129 would be ( -1 , -129 ) .

#### What does factor pairs of a number mean?

Factor pairs are those factors in pair that can give original number when multiplied. Every natural number is a product of atleast one factor pair. Eg- Factors of 129 are 1 , 3 , 43 , 129. So, factors of 129 in pair are (1,129), (3,43).

#### How can we define factors?

In mathematics, a factor is a number which divides into another number exactly, without leaving any remainder. A factor of a number can be positive of negative.

#### Properties of Factors

• Every factor of a number is an exact divisor of that number, example 1, 3, 43, 129 are exact divisors of 129.
• Every number other than 1 has at least two factors, namely the number itself and 1.
• Each number is a factor of itself. Eg. 129 is a factor of itself.
• 1 is a factor of every number. Eg. 1 is a factor of 129.

#### Steps to find Factors of 129

• Step 1. Find all the numbers that would divide 129 without leaving any remainder. Starting with the number 1 upto 64 (half of 129). The number 1 and the number itself are always factors of the given number.
129 ÷ 1 : Remainder = 0
129 ÷ 3 : Remainder = 0
129 ÷ 43 : Remainder = 0
129 ÷ 129 : Remainder = 0

Hence, Factors of 129 are 1, 3, 43, and 129

• Is 129 a composite number?

Yes 129 is a composite number.

• Is 129 a perfect square?

No 129 is not a perfect square.

• Write all odd factors of 129?

The factors of 129 are 1, 3, 43, 129.
Odd factors of 129 are 1 , 3 , 43 , 129.

• What is the mean of all prime factors of 129?

Factors of 129 are 1 , 3 , 43 , 129. Prime factors of 129 are 3 , 43. Therefore mean of prime factors of 129 is (3 + 43) / 2 = 23.00.

• What do you mean by proper divisors?

A number x is said to be the proper divisor of y if it divides y completely, given that x is smaller than y.

#### Examples of Factors

Can you help Rubel in arranging 129 blocks in order to form a rectangle in all possible ways? For arranging 129 blocks in order to form a rectangle in all possible ways we need to find factors of 129 in pair.

Factors of 129 are 1, 3, 43, 129. So, factors of 129 in pair are (1,129), (3,43).

How many total number of factors of 129 in pair are possible?

Factors of 129 are 1, 3, 43, 129. Hence, the factors of 129 in pair are (1,129), (3,43). Therefore, in total 2 pairs of factors are possible.

Sammy wants to write all the negative factors of 129 in pair, but don't know how to start. Help Sammy in writing all the factor pairs.

Negative factors of 129 are -1, -3, -43, -129. Hence, factors of 129 in pair are (-1,-129), (-3,-43).

Find the product of all prime factors of 129.

Factors of 129 are 1, 3, 43, 129. Prime factors are 3, 43. So, the product of all prime factors of 129 would be 3 x 43 = 129.

A student has been assigned the following tasks by the teacher:
- Finding out all positive factors of 129.
- Writing all prime factors of 129.
- Writing all the possible factors of 129 in pair.
Help him in writing all these.

Positive factors of 129 are 1, 3, 43, 129.
Prime factors of 129 are 3, 43.
Factors of 129 in pair are (1,129), (3,43).

Can you help Sammy list the factors of 129 and also find the factor pairs?

Factors of 129 are 1, 3, 43, 129.
Factors of 129 in pair are (1,129), (3,43).

Help Diji in finding factors of 129 by Prime Factorization method and then sorting factors of 129 in pairs.

Prime factorization of 129 is 3 x 43. Factors of 129 in pair can be written as (1,129), (3,43).

Write the smallest prime factor of 129.

Smallest prime factor of 129 is 3.