# Is 105 prime?

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The number 105 is a composite number because 105 can be divided by one, by itself and at least by 3, 5 and 7. A composite number is an integer that can be divided by at least another natural number, besides itself and 1, without leaving a remainder (divided exactly).

The factorization or decomposition of 105 = 3•5•7. Notice that here, it is written in exponential form.

The prime factors of 105 are 3, 5 and 7. It is the list of the integer's prime factors.

The number of prime factors of 105 is 3.

### Factor tree or prime decomposition for 105

As 105 is a composite number, we can draw its factor tree:

Here you can find the answer to questions related to: Is 105 prime? or list the factors of 105. By using our online calculator to find the prime factors of any composite number and check if a number is prime or composite. This tool also draws the prime factor tree if the number is factorable and smaller than 16000.

## What is prime number? How to factorize a number?

Watch this video below to learn more on prime numbers, prime factors and how you can draw a factor tree.

You can also find this video about factorization at mathantics.com

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• how many factors does 105 have?