# Is 1 prime?

## Prime Factors Calculator

Enter a natural number to get its prime factors:

Ex.: 4, 8, 9, 26, 128, etc.
This calculator accepts numbers up to 10,000,000,000 (10 billion)

### Results:

The number 1 is a special number. It falls in a class of numbers called units. The number one has no factors. This is a special property of the number 1.

Here you can find the answer to questions related to: Is 1 prime? or list the factors of 1. 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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