# What are all the factors of 643?

## Prime Factors Calculator

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### Results:

The number 643 is a prime number, because 643 is only divided by one and by itself.

Here you can find the answer to questions related to: What are all the factors of 643? or list the factors of 643. 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 643 have?