Factors of 870
Factors of 870 are the list of integers that we can split evenly into 870. There are total 16 factors of 870, of which 2, 3, 5, 29 are its prime factors. The sum of all factors of 870 is 2160.
- All Factors of 870: 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435 and 870
- Prime Factors of 870: 2, 3, 5, 29
- Prime Factorization of 870: 21 × 31 × 51 × 291
- Sum of Factors of 870: 2160
1. | What Are the Factors of 870? |
2. | Factors of 870 by Prime Factorization |
3. | Factors of 870 in Pairs |
4. | FAQs on Factors of 870 |

What are Factors of 870?
Factors of 870 are pairs of those numbers whose products result in 870. These factors are either prime numbers or composite numbers.
How to Find the Factors of 870?
To find the factors of 870, we will have to find the list of numbers that would divide 870 without leaving any remainder.
- 870/145 = 6; therefore, 145 is a factor of 870 and 6 is also a factor of 870.
- 870/15 = 58; therefore, 15 is a factor of 870 and 58 is also a factor of 870.
☛ Also Check:
- Factors of 50 - The factors of 50 are 1, 2, 5, 10, 25, 50
- Factors of 52 - The factors of 52 are 1, 2, 4, 13, 26, 52
- Factors of 65 - The factors of 65 are 1, 5, 13, 65
- Factors of 23 - The factors of 23 are 1, 23
- Factors of 19 - The factors of 19 are 1, 19
Factors of 870 by Prime Factorization
- 870 ÷ 2 = 435
Further dividing 435 by 2 gives a non-zero remainder. So we stop the process and continue dividing the number 435 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 870 can be written as 21 × 31 × 51 × 291 where 2, 3, 5, 29 are prime.
Factors of 870 in Pairs
Pair factors of 870 are the pairs of numbers that when multiplied give the product 870. The factors of 870 in pairs are:
- 1 × 870 = (1, 870)
- 2 × 435 = (2, 435)
- 3 × 290 = (3, 290)
- 5 × 174 = (5, 174)
- 6 × 145 = (6, 145)
- 10 × 87 = (10, 87)
- 15 × 58 = (15, 58)
- 29 × 30 = (29, 30)
Negative pair factors of 870 are:
- -1 × -870 = (-1, -870)
- -2 × -435 = (-2, -435)
- -3 × -290 = (-3, -290)
- -5 × -174 = (-5, -174)
- -6 × -145 = (-6, -145)
- -10 × -87 = (-10, -87)
- -15 × -58 = (-15, -58)
- -29 × -30 = (-29, -30)
NOTE: If (a, b) is a pair factor of a number then (b, a) is also a pair factor of that number.
Factors of 870 Solved Examples
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Example 1: How many factors are there for 870?
Solution:
The factors of 870 are too many, therefore if we can find the prime factorization of 870, then the total number of factors can be calculated using the formula shown below.
If the prime factorization of the number is ax × by × cz where a, b, c are prime, then the total number of factors can be given by (x + 1)(y + 1)(z + 1).
Prime Factorization of 870 = 21 × 31 × 51 × 291
Therefore, the total number of factors are (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 = 16 -
Example 2: Find the LCM and Highest Common Factor (HCF) of 870 and 107.
Solution:
The factors of 870 are 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870 and factors of 107 are 1, 107.
Therefore, the LCM of 870 and 107 is 93090 and Highest Common Factor (HCF) of 870 and 107 is 1. -
Example 3: Find if 1, 3, 6, 10, 58, 145, 174 and 821 are factors of 870.
Solution:
When we divide 870 by 821 it leaves a remainder. Therefore, the number 821 is not a factor of 870. All numbers except 821 are factors of 870.
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Example 4: Find the product of all the prime factors of 870.
Solution:
Since, the prime factors of 870 are 2, 3, 5, 29. Therefore, the product of prime factors = 2 × 3 × 5 × 29 = 870.
FAQs on Factors of 870
What are the Factors of 870?
The factors of 870 are 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870 and its negative factors are -1, -2, -3, -5, -6, -10, -15, -29, -30, -58, -87, -145, -174, -290, -435, -870.
What is the Sum of all Factors of 870?
Sum of all factors of 870 = (21 + 1 - 1)/(2 - 1) × (31 + 1 - 1)/(3 - 1) × (51 + 1 - 1)/(5 - 1) × (291 + 1 - 1)/(29 - 1) = 2160
What are Prime Factors of 870?
The prime factors of 870 are 2, 3, 5, 29.
What is the Greatest Common Factor of 870 and 762?
The factors of 870 and 762 are 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870 and 1, 2, 3, 6, 127, 254, 381, 762 respectively.
Common factors of 870 and 762 are [1, 2, 3, 6].
Hence, the GCF of 870 and 762 is 6.
What are the Common Factors of 870 and 378?
Since, the factors of 870 are 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870 and the factors of 378 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378.
Hence, [1, 2, 3, 6] are the common factors of 870 and 378.
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