Factor Calculator

Factors of 1008

The factors of 1008 are 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, and 1008. In total, 1008 has 30 factors. Its prime factorization is 2⁴ × 3² × 7, and the sum of all its factors is 3224.

All factors of 1008

Here are all 30 factors of 1008, listed from smallest to largest.

1234678912141618212428364248566372841121261441682523365041008

Factor pairs of 1008

These 15 pairs of whole numbers each multiply to give 1008.

1 × 1008 = 1008
2 × 504 = 1008
3 × 336 = 1008
4 × 252 = 1008
6 × 168 = 1008
7 × 144 = 1008
8 × 126 = 1008
9 × 112 = 1008
12 × 84 = 1008
14 × 72 = 1008
16 × 63 = 1008
18 × 56 = 1008
21 × 48 = 1008
24 × 42 = 1008
28 × 36 = 1008

Prime factorization of 1008

Dividing 1008 by the smallest prime at each step gives its prime factorization:

1008 ÷ 2 = 504
504 ÷ 2 = 252
252 ÷ 2 = 126
126 ÷ 2 = 63
63 ÷ 3 = 21
21 ÷ 3 = 7
7 ÷ 7 = 1
Result: 1008 = 2 × 2 × 2 × 2 × 3 × 3 × 7 = 2⁴ × 3² × 7

The distinct prime factors of 1008 are 2, 3, 7. To factorize any other number, use the prime factorization calculator.

Factor tree of 1008

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

Factor tree of 1008100825042252212626332137
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 1008

Number of factors30
Sum of factors3224
Sum of proper factors2216
Prime factorization2⁴ × 3² × 7
Prime or composite?Composite
Even or odd?Even
Perfect square?No
Perfect cube?No
ClassificationAbundant

What makes 1008 interesting

  • 1008 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 15 different ways.
  • 1008 is an abundant number: its proper factors sum to 2216, which is 1208 more than 1008 itself.
  • 1008 has 3 distinct prime factors (2, 3, 7), which is why it has so many divisors.

How to find the factors of 1008 yourself

Divide 1008 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 √100831.75, because every factor above that pairs with one below it.

1008 ÷ 1 = 1008
1008 ÷ 2 = 504
1008 ÷ 3 = 336
1008 ÷ 4 = 252
1008 ÷ 6 = 168
1008 ÷ 7 = 144
1008 ÷ 8 = 126
1008 ÷ 9 = 112
1008 ÷ 12 = 84
1008 ÷ 14 = 72
1008 ÷ 16 = 63
1008 ÷ 18 = 56
1008 ÷ 21 = 48
1008 ÷ 24 = 42
1008 ÷ 28 = 36

Reading both columns gives every factor: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008. The factor calculator does this automatically for any number.

Frequently asked questions about 1008

What are the factors of 1008?

The factors of 1008 are 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, and 1008. That is 30 factors in total, counting both 1 and 1008.

Is 1008 a prime number?

No, 1008 is not prime — it is a composite number with 30 factors. A prime number has exactly two factors, but 1008 is also divisible by 2.

What is the prime factorization of 1008?

The prime factorization of 1008 is 2⁴ × 3² × 7. Written out in full: 2 × 2 × 2 × 2 × 3 × 3 × 7 = 1008. Its distinct prime factors are 2, 3, 7.

What two numbers multiply to give 1008?

There are 15 pairs of whole numbers that multiply to 1008: 1 × 1008, 2 × 504, 3 × 336, 4 × 252, 6 × 168, 7 × 144, 8 × 126, 9 × 112, 12 × 84, 14 × 72, 16 × 63, 18 × 56, 21 × 48, 24 × 42, 28 × 36.

What is the sum of the factors of 1008?

Adding all the factors of 1008 together gives 3224. Excluding 1008 itself, the proper factors sum to 2216.

Is 1008 a perfect square?

No, 1008 is not a perfect square. There is no whole number that multiplies by itself to give 1008. The nearest perfect squares are 961 and 1024.

What is the largest factor of 1008 other than itself?

The largest factor of 1008 apart from 1008 itself is 504, since 1008 ÷ 504 = 2.

How many factors does 1008 have?

1008 has 30 factors: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, and 1008. You can verify this from the prime factorization 2⁴ × 3² × 7: add 1 to each exponent and multiply, giving 5 × 3 × 2 = 30.

Explore more

Try another number in the factor calculator, break 1008 down further with the prime factorization calculator, or compare 1008 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.