Factor Calculator

Factors of 392

The factors of 392 are 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, and 392. In total, 392 has 12 factors. Its prime factorization is 2³ × 7², and the sum of all its factors is 855.

All factors of 392

Here are all 12 factors of 392, listed from smallest to largest.

124781428495698196392

Factor pairs of 392

These 6 pairs of whole numbers each multiply to give 392.

1 × 392 = 392
2 × 196 = 392
4 × 98 = 392
7 × 56 = 392
8 × 49 = 392
14 × 28 = 392

Prime factorization of 392

Dividing 392 by the smallest prime at each step gives its prime factorization:

392 ÷ 2 = 196
196 ÷ 2 = 98
98 ÷ 2 = 49
49 ÷ 7 = 7
7 ÷ 7 = 1
Result: 392 = 2 × 2 × 2 × 7 × 7 = 2³ × 7²

The distinct prime factors of 392 are 2, 7. To factorize any other number, use the prime factorization calculator.

Factor tree of 392

A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.

Factor tree of 392392219629824977
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 392

Number of factors12
Sum of factors855
Sum of proper factors463
Prime factorization2³ × 7²
Prime or composite?Composite
Even or odd?Even
Perfect square?No
Perfect cube?No
ClassificationAbundant

What makes 392 interesting

  • 392 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 6 different ways.
  • 392 is an abundant number: its proper factors sum to 463, which is 71 more than 392 itself.

How to find the factors of 392 yourself

Divide 392 by each whole number starting from 1. Whenever the division leaves no remainder, both the divisor and the quotient are factors. You only need to test up to √39219.80, because every factor above that pairs with one below it.

392 ÷ 1 = 392
392 ÷ 2 = 196
392 ÷ 4 = 98
392 ÷ 7 = 56
392 ÷ 8 = 49
392 ÷ 14 = 28

Reading both columns gives every factor: 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392. The factor calculator does this automatically for any number.

Frequently asked questions about 392

What are the factors of 392?

The factors of 392 are 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, and 392. That is 12 factors in total, counting both 1 and 392.

Is 392 a prime number?

No, 392 is not prime — it is a composite number with 12 factors. A prime number has exactly two factors, but 392 is also divisible by 2.

What is the prime factorization of 392?

The prime factorization of 392 is 2³ × 7². Written out in full: 2 × 2 × 2 × 7 × 7 = 392. Its distinct prime factors are 2, 7.

What two numbers multiply to give 392?

There are 6 pairs of whole numbers that multiply to 392: 1 × 392, 2 × 196, 4 × 98, 7 × 56, 8 × 49, 14 × 28.

What is the sum of the factors of 392?

Adding all the factors of 392 together gives 855. Excluding 392 itself, the proper factors sum to 463.

Is 392 a perfect square?

No, 392 is not a perfect square. There is no whole number that multiplies by itself to give 392. The nearest perfect squares are 361 and 400.

What is the largest factor of 392 other than itself?

The largest factor of 392 apart from 392 itself is 196, since 392 ÷ 196 = 2.

How many factors does 392 have?

392 has 12 factors: 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, and 392. You can verify this from the prime factorization 2³ × 7²: add 1 to each exponent and multiply, giving 4 × 3 = 12.

Explore more

Try another number in the factor calculator, break 392 down further with the prime factorization calculator, or compare 392 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.