Factor Calculator

Factors of 1047

The factors of 1047 are 1, 3, 349, and 1047. In total, 1047 has 4 factors. Its prime factorization is 3 × 349, and the sum of all its factors is 1400.

All factors of 1047

Here are all 4 factors of 1047, listed from smallest to largest.

133491047

Factor pairs of 1047

These 2 pairs of whole numbers each multiply to give 1047.

1 × 1047 = 1047
3 × 349 = 1047

Prime factorization of 1047

Dividing 1047 by the smallest prime at each step gives its prime factorization:

1047 ÷ 3 = 349
349 ÷ 349 = 1
Result: 1047 = 3 × 349 = 3 × 349

The distinct prime factors of 1047 are 3, 349. To factorize any other number, use the prime factorization calculator.

Factor tree of 1047

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

Factor tree of 104710473349
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 1047

Number of factors4
Sum of factors1400
Sum of proper factors353
Prime factorization3 × 349
Prime or composite?Composite
Even or odd?Odd
Perfect square?No
Perfect cube?No
ClassificationDeficient

What makes 1047 interesting

  • 1047 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.
  • 1047 is a deficient number: its proper factors sum to 353, which is 694 less than 1047 itself.

How to find the factors of 1047 yourself

Divide 1047 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 √104732.36, because every factor above that pairs with one below it.

1047 ÷ 1 = 1047
1047 ÷ 3 = 349

Reading both columns gives every factor: 1, 3, 349, 1047. The factor calculator does this automatically for any number.

Frequently asked questions about 1047

What are the factors of 1047?

The factors of 1047 are 1, 3, 349, and 1047. That is 4 factors in total, counting both 1 and 1047.

Is 1047 a prime number?

No, 1047 is not prime — it is a composite number with 4 factors. A prime number has exactly two factors, but 1047 is also divisible by 3.

What is the prime factorization of 1047?

The prime factorization of 1047 is 3 × 349. Written out in full: 3 × 349 = 1047. Its distinct prime factors are 3, 349.

What two numbers multiply to give 1047?

There are 2 pairs of whole numbers that multiply to 1047: 1 × 1047, 3 × 349.

What is the sum of the factors of 1047?

Adding all the factors of 1047 together gives 1400. Excluding 1047 itself, the proper factors sum to 353.

Is 1047 a perfect square?

No, 1047 is not a perfect square. There is no whole number that multiplies by itself to give 1047. The nearest perfect squares are 1024 and 1089.

What is the largest factor of 1047 other than itself?

The largest factor of 1047 apart from 1047 itself is 349, since 1047 ÷ 349 = 3.

How many factors does 1047 have?

1047 has 4 factors: 1, 3, 349, and 1047. You can verify this from the prime factorization 3 × 349: add 1 to each exponent and multiply, giving 2 × 2 = 4.

Explore more

Try another number in the factor calculator, break 1047 down further with the prime factorization calculator, or compare 1047 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.