Steps to find factors of 81 that add upto 36

Example: Find factors of 81 that add upto 36

  • Sum of 9 and 27 : 9 + 27 = 36

Hence, factors of 81 that add upto 36 are 9 and 27.

Steps to find Factors of 81

  • Step 1. Find all the numbers that would divide 81 without leaving any remainder. Starting with the number 1 upto 40 (half of 81). The number 1 and the number itself are always factors of the given number.
    81 ÷ 1 : Remainder = 0
    81 ÷ 3 : Remainder = 0
    81 ÷ 9 : Remainder = 0
    81 ÷ 27 : Remainder = 0
    81 ÷ 81 : Remainder = 0

Hence, Factors of 81 are 1, 3, 9, 27, and 81

How can we define factors?

In mathematics a factor is that number which divides into another completely, i.e. leaving 0 as a remainder. Or we can say, any numbers when multiplied together to give a product are termed as the factors of that obtained product. It can be both positive or negative.

Properties of Factors

  • Every factor of a number is an exact divisor of that number, example 1, 3, 9, 27, 81 are exact divisors of 81.
  • Every number other than 1 has at least two factors, namely the number itself and 1.
  • Each number is a factor of itself. Eg. 81 is a factor of itself.
  • 1 is the common and smallest natural factor every number can have.
  • Every factor of a number is less than or equal to the number, eg. 1, 3, 9, 27, 81 are all less than or equal to 81.

Examples

Can you assist Aubrey in finding factors of 81 that add upto 36?

Factors of 81 are 1, 3, 9, 27, 81.
Factors of 81 that add upto 36 are 9, 27, as 9 + 27 = 36.

Can you help Diji in finding sum of all even factors of 81?

Factors of 81 are 1, 3, 9, 27, 81.
Even factors of 81 are 0.
Hence, sum of even factors of 81 is; 0 = 0.

Rustom is wondering to find the factors of 81 that add upto 36, but is stuck. Assist Rustom in writing the same.

Factors of 81 are 1, 3, 9, 27, 81.
Factors of 81 that add upto 36 are 9, 27, as 9 + 27 = 36.

Help Andy in writing even prime factors of 81.

Factors of 81 are 1, 3, 9, 27, 81.
Even factors of 81 are 0.

What is the largest factors of 81?

Factors of 81 are 1, 3, 9, 27, 81. Largest factor f 81 is 81.

Sammy is puzzled while calculating the prime factors of 81. Can you help him find them?

Factors of 81 are 1, 3, 9, 27, 81.
Prime factors of 81 are 3, 3, 3, 3

Help Ashi in writing the negative pair factors of 81?

Negative factors of 81 are -1, -3, -9, -27, -81. Hence, factors of 81 in pair are (-1,-81), (-3,-27), (-9,-9).