Factor Calculator

Factors of 1120

The factors of 1120 are 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, and 1120. In total, 1120 has 24 factors. Its prime factorization is 2⁵ × 5 × 7, and the sum of all its factors is 3024.

All factors of 1120

Here are all 24 factors of 1120, listed from smallest to largest.

12457810141620283235405670801121401602242805601120

Factor pairs of 1120

These 12 pairs of whole numbers each multiply to give 1120.

1 × 1120 = 1120
2 × 560 = 1120
4 × 280 = 1120
5 × 224 = 1120
7 × 160 = 1120
8 × 140 = 1120
10 × 112 = 1120
14 × 80 = 1120
16 × 70 = 1120
20 × 56 = 1120
28 × 40 = 1120
32 × 35 = 1120

Prime factorization of 1120

Dividing 1120 by the smallest prime at each step gives its prime factorization:

1120 ÷ 2 = 560
560 ÷ 2 = 280
280 ÷ 2 = 140
140 ÷ 2 = 70
70 ÷ 2 = 35
35 ÷ 5 = 7
7 ÷ 7 = 1
Result: 1120 = 2 × 2 × 2 × 2 × 2 × 5 × 7 = 2⁵ × 5 × 7

The distinct prime factors of 1120 are 2, 5, 7. To factorize any other number, use the prime factorization calculator.

Factor tree of 1120

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

Factor tree of 1120112025602280214027023557
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 1120

Number of factors24
Sum of factors3024
Sum of proper factors1904
Prime factorization2⁵ × 5 × 7
Prime or composite?Composite
Even or odd?Even
Perfect square?No
Perfect cube?No
ClassificationAbundant

What makes 1120 interesting

  • 1120 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 12 different ways.
  • 1120 is an abundant number: its proper factors sum to 1904, which is 784 more than 1120 itself.
  • 1120 has 3 distinct prime factors (2, 5, 7), which is why it has so many divisors.

How to find the factors of 1120 yourself

Divide 1120 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 √112033.47, because every factor above that pairs with one below it.

1120 ÷ 1 = 1120
1120 ÷ 2 = 560
1120 ÷ 4 = 280
1120 ÷ 5 = 224
1120 ÷ 7 = 160
1120 ÷ 8 = 140
1120 ÷ 10 = 112
1120 ÷ 14 = 80
1120 ÷ 16 = 70
1120 ÷ 20 = 56
1120 ÷ 28 = 40
1120 ÷ 32 = 35

Reading both columns gives every factor: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120. The factor calculator does this automatically for any number.

Frequently asked questions about 1120

What are the factors of 1120?

The factors of 1120 are 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, and 1120. That is 24 factors in total, counting both 1 and 1120.

Is 1120 a prime number?

No, 1120 is not prime — it is a composite number with 24 factors. A prime number has exactly two factors, but 1120 is also divisible by 2.

What is the prime factorization of 1120?

The prime factorization of 1120 is 2⁵ × 5 × 7. Written out in full: 2 × 2 × 2 × 2 × 2 × 5 × 7 = 1120. Its distinct prime factors are 2, 5, 7.

What two numbers multiply to give 1120?

There are 12 pairs of whole numbers that multiply to 1120: 1 × 1120, 2 × 560, 4 × 280, 5 × 224, 7 × 160, 8 × 140, 10 × 112, 14 × 80, 16 × 70, 20 × 56, 28 × 40, 32 × 35.

What is the sum of the factors of 1120?

Adding all the factors of 1120 together gives 3024. Excluding 1120 itself, the proper factors sum to 1904.

Is 1120 a perfect square?

No, 1120 is not a perfect square. There is no whole number that multiplies by itself to give 1120. The nearest perfect squares are 1089 and 1156.

What is the largest factor of 1120 other than itself?

The largest factor of 1120 apart from 1120 itself is 560, since 1120 ÷ 560 = 2.

How many factors does 1120 have?

1120 has 24 factors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, and 1120. You can verify this from the prime factorization 2⁵ × 5 × 7: add 1 to each exponent and multiply, giving 6 × 2 × 2 = 24.

Explore more

Try another number in the factor calculator, break 1120 down further with the prime factorization calculator, or compare 1120 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.