# Factors of 80 in pair

Factors of 80 in pair are (1, 80) , (2, 40) , (4, 20) , (5, 16) and (8, 10)

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

 1.   Steps to find factors of 80 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 80 in pair

Factor Pair Pair Factorization
1 and 80 1 x 80 = 80
2 and 40 2 x 40 = 80
4 and 20 4 x 20 = 80
5 and 16 5 x 16 = 80
8 and 10 8 x 10 = 80

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 80. They are called negative pair factors.

Hence, the negative pairs of 80 would be ( -1 , -80 ) .

#### Definition of factor pairs?

In mathematics, factor pair are often given as pair of numbers which when multiplied together give the original number. Every natural number is a product of atleast one factor pair. Eg- Factors of 80 are 1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 40 , 80. So, factors of 80 in pair are (1,80), (2,40), (4,20), (5,16), (8,10).

#### What are factors?

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

#### Properties of Factors

• Each number is a factor of itself. Eg. 80 is a factor of itself.
• 1 is a factor of every number. Eg. 1 is a factor of 80.
• Every number is a factor of zero (0), since 80 x 0 = 0.
• Every number other than 1 has at least two factors, namely the number itself and 1.
• Every factor of a number is an exact divisor of that number, example 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 are exact divisors of 80.
• Factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80. Each factor divides 80 without leaving a remainder.
• Every factor of a number is less than or equal to the number, eg. 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 are all less than or equal to 80.

#### Steps to find Factors of 80

• Step 1. Find all the numbers that would divide 80 without leaving any remainder. Starting with the number 1 upto 40 (half of 80). The number 1 and the number itself are always factors of the given number.
80 ÷ 1 : Remainder = 0
80 ÷ 2 : Remainder = 0
80 ÷ 4 : Remainder = 0
80 ÷ 5 : Remainder = 0
80 ÷ 8 : Remainder = 0
80 ÷ 10 : Remainder = 0
80 ÷ 16 : Remainder = 0
80 ÷ 20 : Remainder = 0
80 ÷ 40 : Remainder = 0
80 ÷ 80 : Remainder = 0

Hence, Factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80

• Is 80 a composite number?

Yes 80 is a composite number.

• Is 80 a prime number?

No 80 is not a prime number.

• Is 80 a perfect square?

No 80 is not a perfect square.

• Write five multiples of 80.

Five multiples of 80 are 160, 240, 320, 400, 480.

• Write all odd factors of 80?

The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.
Odd factors of 80 are 1 , 5.

#### Examples of Factors

Ariel has been asked to write all factor pairs of 80 but she is finding it difficult. Can you help her find out?

Factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80. So, factors of 80 in pair are (1,80), (2,40), (4,20), (5,16), (8,10).

Sammy wants to write all the negative factors of 80 in pair, but don't know how to start. Help Sammy in writing all the factor pairs.

Negative factors of 80 are -1, -2, -4, -5, -8, -10, -16, -20, -40, -80. Hence, factors of 80 in pair are (-1,-80), (-2,-40), (-4,-20), (-5,-16), (-8,-10).

Help Deep in writing the positive factors of 80 in pair and negative factor of 80 in pair.

Factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80. Positive factors of 80 in pair are (1,80), (2,40), (4,20), (5,16), (8,10). Negative factors of 80 in pair are (-1,-80), (-2,-40), (-4,-20), (-5,-16), (-8,-10).

Find the product of all factors of 80.

Factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80. So the product of all factors of 80 would be 1 x 2 x 4 x 5 x 8 x 10 x 16 x 20 x 40 x 80 = 3276800000.

Find the product of all prime factors of 80.

Factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80. Prime factors are 2, 2, 2, 2, 5. So, the product of all prime factors of 80 would be 2 x 2 x 2 x 2 x 5 = 80.

Can you help Sammy list the factors of 80 and also find the factor pairs?

Factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.
Factors of 80 in pair are (1,80), (2,40), (4,20), (5,16), (8,10).

Sammy has 80 blocks and he wants to arrange them in all possible ways to form a rectangle but he doesn't know the technique for doing that, help Sammy in arrangements.

To arrange 80 blocks in all possible ways to form a rectangle, we need to calculate factors of 80 in pair. Therefore, factors of 80 in pair are (1,80), (2,40), (4,20), (5,16), (8,10)