Factor Calculator

Factors of 1011

The factors of 1011 are 1, 3, 337, and 1011. In total, 1011 has 4 factors. Its prime factorization is 3 × 337, and the sum of all its factors is 1352.

All factors of 1011

Here are all 4 factors of 1011, listed from smallest to largest.

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Factor pairs of 1011

These 2 pairs of whole numbers each multiply to give 1011.

1 × 1011 = 1011
3 × 337 = 1011

Prime factorization of 1011

Dividing 1011 by the smallest prime at each step gives its prime factorization:

1011 ÷ 3 = 337
337 ÷ 337 = 1
Result: 1011 = 3 × 337 = 3 × 337

The distinct prime factors of 1011 are 3, 337. To factorize any other number, use the prime factorization calculator.

Factor tree of 1011

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

Factor tree of 101110113337
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 1011

Number of factors4
Sum of factors1352
Sum of proper factors341
Prime factorization3 × 337
Prime or composite?Composite
Even or odd?Odd
Perfect square?No
Perfect cube?No
ClassificationDeficient

What makes 1011 interesting

  • 1011 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 2 different ways.
  • 1011 is a deficient number: its proper factors sum to 341, which is 670 less than 1011 itself.

How to find the factors of 1011 yourself

Divide 1011 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 √101131.80, because every factor above that pairs with one below it.

1011 ÷ 1 = 1011
1011 ÷ 3 = 337

Reading both columns gives every factor: 1, 3, 337, 1011. The factor calculator does this automatically for any number.

Frequently asked questions about 1011

What are the factors of 1011?

The factors of 1011 are 1, 3, 337, and 1011. That is 4 factors in total, counting both 1 and 1011.

Is 1011 a prime number?

No, 1011 is not prime — it is a composite number with 4 factors. A prime number has exactly two factors, but 1011 is also divisible by 3.

What is the prime factorization of 1011?

The prime factorization of 1011 is 3 × 337. Written out in full: 3 × 337 = 1011. Its distinct prime factors are 3, 337.

What two numbers multiply to give 1011?

There are 2 pairs of whole numbers that multiply to 1011: 1 × 1011, 3 × 337.

What is the sum of the factors of 1011?

Adding all the factors of 1011 together gives 1352. Excluding 1011 itself, the proper factors sum to 341.

Is 1011 a perfect square?

No, 1011 is not a perfect square. There is no whole number that multiplies by itself to give 1011. The nearest perfect squares are 961 and 1024.

What is the largest factor of 1011 other than itself?

The largest factor of 1011 apart from 1011 itself is 337, since 1011 ÷ 337 = 3.

How many factors does 1011 have?

1011 has 4 factors: 1, 3, 337, and 1011. You can verify this from the prime factorization 3 × 337: add 1 to each exponent and multiply, giving 2 × 2 = 4.

Explore more

Try another number in the factor calculator, break 1011 down further with the prime factorization calculator, or compare 1011 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.