Factors of 165

The factors of 165 or the numbers which divide 165 exactly are:

1,3,5,11,15,33,55, and 165.

Negative factors of 165: -1,-3,-5,-11,-15,-33,-55,-165.

Prime factors of 165: 3,5,11

Prime factorization of 165: 3×5×11

The sum of factors of 165: 1+3+5+11+15+33+55+165= 288
 

For finding factors of 165, we will be learning these below-mentioned methods:

 

• Multiplication Method

 

• Division Method

 

• Prime Factor and Prime Factorization

 

• Factor Tree
   

This particular method often finds the pair of factors which, on multiplication together, produces 165. Let us find the pairs which, on multiplication, yields 165.

1×165=165

3×55=165

5×33=165

11×15=165

So, factors of 165 are: 1,3,5,11,15,33,55, and 165.
 

The division method finds the factors that evenly divides the given number 165. In this process, we have to divide 165 by all possible natural numbers less than 165 and check.

1,3,5,11,15,33,55, and 165 are the only factors that the number 165 has. So to verify the factors of 165 using the division method, we just need to divide 165 by each factor.

165/1 =165

165/3=55

165/5=33

165/11=15

165/15=11

165/33=5

165/55=3

165/165=1
 

Prime Factorization is the easiest process to find prime factors. It decomposes 165 into a product of its prime integers.

Prime Factors of 165: 3,5,11.

Prime Factorization of 165: 3×5×15
 

 The number 165 is written on top and two branches are extended.

Fill in those branches with a factor pair of the number above, i.e., 165.

Continue this process until each branch ends with a prime factor (number).

The first two branches of the factor tree of 165 are 3 and 55, then proceeding to 55, we get 5 and 11. So, now the factor tree for 165 is achieved. 
 

Positive pair factors:   (1,165), (3,55), (5,33), (11,15).

Negative pair factors:  (-1,-154), (-3,-55), (-5,-33), (-11,-15).
 

• Multipliers - Number which multiplies or a number by which another number is multiplied.

 

• Dividers - A number that divides.

 

• Prime Factorization - It involves factoring the number into its prime factors.

 

• Prime factors - These are the prime numbers which on multiplication together results into the original number whose prime factors are to be obtained.

 

• Composite numbers - These are numbers having more than two factors.

 

• Multiple - It is a product of the given number and any other integer.