Factors of 810 in pair are (1, 810) , (2, 405) , (3, 270) , (5, 162) , (6, 135) , (9, 90) , (10, 81) , (15, 54) , (18, 45) and (27, 30)

How to find factors of a number in pair

Steps to find factors of 810 in pair

Example: Find factors of 810 in pair

Factor Pair Pair Factorization
1 and 810 1 x 810 = 810
2 and 405 2 x 405 = 810
3 and 270 3 x 270 = 810
5 and 162 5 x 162 = 810
6 and 135 6 x 135 = 810
9 and 90 9 x 90 = 810
10 and 81 10 x 81 = 810
15 and 54 15 x 54 = 810
18 and 45 18 x 45 = 810
27 and 30 27 x 30 = 810

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 810. They are called negative pair factors.

Hence, the negative pairs of 810 would be ( -1 , -810 ) .

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 810 are 1 , 2 , 3 , 5 , 6 , 9 , 10 , 15 , 18 , 27 , 30 , 45 , 54 , 81 , 90 , 135 , 162 , 270 , 405 , 810. So, factors of 810 in pair are (1,810), (2,405), (3,270), (5,162), (6,135), (9,90), (10,81), (15,54), (18,45), (27,30).

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. 810 is a factor of itself.
  • 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, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810 are exact divisors of 810.
  • 1 is a factor of every number. Eg. 1 is a factor of 810.
  • Every number is a factor of zero (0), since 810 x 0 = 0.

Steps to find Factors of 810

  • Step 1. Find all the numbers that would divide 810 without leaving any remainder. Starting with the number 1 upto 405 (half of 810). The number 1 and the number itself are always factors of the given number.
    810 ÷ 1 : Remainder = 0
    810 ÷ 2 : Remainder = 0
    810 ÷ 3 : Remainder = 0
    810 ÷ 5 : Remainder = 0
    810 ÷ 6 : Remainder = 0
    810 ÷ 9 : Remainder = 0
    810 ÷ 10 : Remainder = 0
    810 ÷ 15 : Remainder = 0
    810 ÷ 18 : Remainder = 0
    810 ÷ 27 : Remainder = 0
    810 ÷ 30 : Remainder = 0
    810 ÷ 45 : Remainder = 0
    810 ÷ 54 : Remainder = 0
    810 ÷ 81 : Remainder = 0
    810 ÷ 90 : Remainder = 0
    810 ÷ 135 : Remainder = 0
    810 ÷ 162 : Remainder = 0
    810 ÷ 270 : Remainder = 0
    810 ÷ 405 : Remainder = 0
    810 ÷ 810 : Remainder = 0

Hence, Factors of 810 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, and 810

Frequently Asked Questions

  • Is 810 a composite number?

    Yes 810 is a composite number.

  • Is 810 a prime number?

    No 810 is not a prime number.

  • What is the mean of factors of 810?

    Factors of 810 are 1 , 2 , 3 , 5 , 6 , 9 , 10 , 15 , 18 , 27 , 30 , 45 , 54 , 81 , 90 , 135 , 162 , 270 , 405 , 810. therefore mean of factors of 810 is (1 + 2 + 3 + 5 + 6 + 9 + 10 + 15 + 18 + 27 + 30 + 45 + 54 + 81 + 90 + 135 + 162 + 270 + 405 + 810) / 20 = 108.90.

  • 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.

  • What do you mean by improper divisors?

    An improper divisor of a number is the number itself apart from this any divisor of a given number is a proper divisor.

Examples of Factors

Ariel has been asked to write all factor pairs of 810 but she is finding it difficult. Can you help her find out?

Factors of 810 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810. So, factors of 810 in pair are (1,810), (2,405), (3,270), (5,162), (6,135), (9,90), (10,81), (15,54), (18,45), (27,30).

Sammy wants to write all the negative factors of 810 in pair, but don't know how to start. Help Sammy in writing all the factor pairs.

Negative factors of 810 are -1, -2, -3, -5, -6, -9, -10, -15, -18, -27, -30, -45, -54, -81, -90, -135, -162, -270, -405, -810. Hence, factors of 810 in pair are (-1,-810), (-2,-405), (-3,-270), (-5,-162), (-6,-135), (-9,-90), (-10,-81), (-15,-54), (-18,-45), (-27,-30).

Help Deep in writing the positive factors of 810 in pair and negative factor of 810 in pair.

Factors of 810 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810. Positive factors of 810 in pair are (1,810), (2,405), (3,270), (5,162), (6,135), (9,90), (10,81), (15,54), (18,45), (27,30). Negative factors of 810 in pair are (-1,-810), (-2,-405), (-3,-270), (-5,-162), (-6,-135), (-9,-90), (-10,-81), (-15,-54), (-18,-45), (-27,-30).

Find the product of all prime factors of 810.

Factors of 810 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810. Prime factors are 2, 3, 3, 3, 3, 5. So, the product of all prime factors of 810 would be 2 x 3 x 3 x 3 x 3 x 5 = 810.

Can you help Sammy list the factors of 810 and also find the factor pairs?

Factors of 810 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810.
Factors of 810 in pair are (1,810), (2,405), (3,270), (5,162), (6,135), (9,90), (10,81), (15,54), (18,45), (27,30).

Help Diji in finding factors of 810 by Prime Factorization method and then sorting factors of 810 in pairs.

Prime factorization of 810 is 2 x 3 x 3 x 3 x 3 x 5. Factors of 810 in pair can be written as (1,810), (2,405), (3,270), (5,162), (6,135), (9,90), (10,81), (15,54), (18,45), (27,30).

Write the smallest prime factor of 810.

Smallest prime factor of 810 is 2.

Write the largest prime factor of 810.

Largest prime factor of 810 is 5.