Factors of 392
Factors of 392 are integers that can be divided evenly into 392. There are overall 12 factors of 392 among which 392 is the biggest factor and its prime factors are 2, 7. The Prime Factorization of 392 is 23 × 72.
- All Factors of 392: 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196 and 392
- Prime Factors of 392: 2, 7
- Prime Factorization of 392: 23 × 72
- Sum of Factors of 392: 855
1. | What Are the Factors of 392? |
2. | Factors of 392 by Prime Factorization |
3. | Factors of 392 in Pairs |
4. | FAQs on Factors of 392 |
What are Factors of 392?
Factors of 392 are pairs of those numbers whose products result in 392. These factors are either prime numbers or composite numbers.
How to Find the Factors of 392?
To find the factors of 392, we will have to find the list of numbers that would divide 392 without leaving any remainder.
- 392/1 = 392; therefore, 1 is a factor of 392.
- 392/49 = 8; therefore, 49 is a factor of 392.
☛ Also Check:
- Factors of 125 - The factors of 125 are 1, 5, 25, 125
- Factors of 35 - The factors of 35 are 1, 5, 7, 35
- Factors of 96 - The factors of 96 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
- Factors of 121 - The factors of 121 are 1, 11, 121
- Factors of 29 - The factors of 29 are 1, 29
Factors of 392 by Prime Factorization
- 392 ÷ 2 = 196
- 196 ÷ 2 = 98
- 98 ÷ 2 = 49
Further dividing 49 by 2 gives a non-zero remainder. So we stop the process and continue dividing the number 49 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 392 can be written as 23 × 72 where 2, 7 are prime.
Factors of 392 in Pairs
Pair factors of 392 are the pairs of numbers that when multiplied give the product 392. The factors of 392 in pairs are:
- 1 × 392 = (1, 392)
- 2 × 196 = (2, 196)
- 4 × 98 = (4, 98)
- 7 × 56 = (7, 56)
- 8 × 49 = (8, 49)
- 14 × 28 = (14, 28)
Negative pair factors of 392 are:
- -1 × -392 = (-1, -392)
- -2 × -196 = (-2, -196)
- -4 × -98 = (-4, -98)
- -7 × -56 = (-7, -56)
- -8 × -49 = (-8, -49)
- -14 × -28 = (-14, -28)
NOTE: If (a, b) is a pair factor of a number then (b, a) is also a pair factor of that number.
Factors of 392 Solved Examples
-
Example 1: How many factors are there for 392?
Solution:
The factors of 392 are too many, therefore if we can find the prime factorization of 392, 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 392 = 23 × 72
Therefore, the total number of factors are (3 + 1) × (2 + 1) = 4 × 3 = 12 -
Example 2: Find the LCM and Highest Common Factor (HCF) of 392 and 201.
Solution:
The factors of 392 are 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392 and factors of 201 are 1, 3, 67, 201.
Therefore, the LCM of 392 and 201 is 78792 and Highest Common Factor (HCF) of 392 and 201 is 1. -
Example 3: Find if 1, 7, 8, 49, 98, 175 and 392 are factors of 392.
Solution:
When we divide 392 by 175 it leaves a remainder. Therefore, the number 175 is not a factor of 392. All numbers except 175 are factors of 392.
-
Example 4: Find the product of all the prime factors of 392.
Solution:
Since, the prime factors of 392 are 2, 7. Therefore, the product of prime factors = 2 × 7 = 14.
FAQs on Factors of 392
What are the Factors of 392?
The factors of 392 are 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392 and its negative factors are -1, -2, -4, -7, -8, -14, -28, -49, -56, -98, -196, -392.
What is the Sum of all the Factors of 392?
Sum of all factors of 392 = (23 + 1 - 1)/(2 - 1) × (72 + 1 - 1)/(7 - 1) = 855
What are the Prime Factors of 392?
The prime factors of 392 are 2, 7.
What is the Greatest Common Factor of 392 and 315?
The factors of 392 and 315 are 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392 and 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315 respectively.
Common factors of 392 and 315 are [1, 7].
Hence, the Greatest Common Factor (GCF) of 392 and 315 is 7.
How Many Factors of 118 are also common to the Factors of 392?
Since, the factors of 392 are 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392 and the factors of 118 are 1, 2, 59, 118.
Hence, [1, 2] are the common factors of 392 and 118.
visual curriculum