Factors of 489
Factors of 489 are numbers that, when multiplied in pairs give the product as 489. There are 4 factors of 489 of which 489 itself is the biggest factor and its positive factors are 1, 3, 163, 489. The Prime Factors of 489 are 3 × 163 and its Factors in Pairs are (1, 489), (3, 163).
- All Factors of 489: 1, 3, 163 and 489
- Negative Factors of 489: -1, -3, -163 and -489
- Prime Factors of 489: 3, 163
- Prime Factorization of 489: 31 × 1631
- Sum of Factors of 489: 656
1. | What Are the Factors of 489? |
2. | Factors of 489 by Prime Factorization |
3. | Factors of 489 in Pairs |
4. | FAQs on Factors of 489 |

What are Factors of 489?
Factors of 489 are pairs of those numbers whose products result in 489. These factors are either prime numbers or composite numbers.
How to Find the Factors of 489?
To find the factors of 489, we will have to find the list of numbers that would divide 489 without leaving any remainder.
- 489/163 = 3; therefore, 163 is a factor of 489 and 3 is also a factor of 489.
- 489/1 = 489; therefore, 1 is a factor of 489 and 489 is also a factor of 489.
☛ Also Check:
- Factors of 7 - The factors of 7 are 1, 7
- Factors of 14 - The factors of 14 are 1, 2, 7, 14
- Factors of 27 - The factors of 27 are 1, 3, 9, 27
- Factors of 9 - The factors of 9 are 1, 3, 9
- Factors of 121 - The factors of 121 are 1, 11, 121
Factors of 489 by Prime Factorization
- 489 ÷ 3 = 163
Further dividing 163 by 3 gives a non-zero remainder. So we stop the process and continue dividing the number 163 by the next smallest prime factor. We stop ultimately if the next prime factor doesn't exist or when we can't divide any further.
So, the prime factorization of 489 can be written as 31 × 1631 where 3, 163 are prime.
Factors of 489 in Pairs
Pair factors of 489 are the pairs of numbers that when multiplied give the product 489. The factors of 489 in pairs are:
- 1 × 489 = (1, 489)
- 3 × 163 = (3, 163)
Negative pair factors of 489 are:
- -1 × -489 = (-1, -489)
- -3 × -163 = (-3, -163)
NOTE: If (a, b) is a pair factor of a number then (b, a) is also a pair factor of that number.
Factors of 489 Solved Examples
-
Example 1: How many factors are there for 489?
Solution:
The factors of 489 are 1, 3, 163, 489. Therefore, 489 has 4 factors.
-
Example 2: Find the Least Common Multiple (LCM) and Highest Common Factor (HCF) of 489 and 216.
Solution:
The factors of 489 are 1, 3, 163, 489 and factors of 216 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216.
Therefore, the Least Common Multiple (LCM) of 489 and 216 is 35208 and Highest Common Factor (HCF) of 489 and 216 is 3. -
Example 3: Find if 3, 461 and 489 are factors of 489.
Solution:
When we divide 489 by 461 it leaves a remainder. Therefore, the number 461 is not a factor of 489. All numbers except 461 are factors of 489.
-
Example 4: Find the product of all the prime factors of 489.
Solution:
Since, the prime factors of 489 are 3, 163. Therefore, the product of prime factors = 3 × 163 = 489.
FAQs on Factors of 489
What are the Factors of 489?
The factors of 489 are 1, 3, 163, 489 and its negative factors are -1, -3, -163, -489.
What is the Sum of all the Factors of 489?
Since, all factors of 489 are 1, 3, 163, 489 therefore, the sum of its factors is 1 + 3 + 163 + 489 = 656.
What are the Prime Factors of 489?
The prime factors of 489 are 3, 163.
What is the Greatest Common Factor of 489 and 163?
The factors of 489 and 163 are 1, 3, 163, 489 and 1, 163 respectively.
Common factors of 489 and 163 are [1, 163].
Hence, the Greatest Common Factor (GCF) of 489 and 163 is 163.
How Many Factors of 489 are also Factors of 101?
Since, the factors of 489 are 1, 3, 163, 489 and factors of 101 are 1, 101. Hence, 489 and 101 have only one common factor which is 1. Therefore, 489 and 101 are co-prime.
visual curriculum