Q: What are the prime factors of the number 172,238,022?

 A: 2, 3, 11, 53, 5471

Why are those the prime factors of the number 172,238,022?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 172,238,022

172,238,022
Factor Arrows
286,119,011
Factor Arrows
328,706,337
Factor Arrows
39,568,779
Factor Arrows
33,189,593
Factor Arrows
11289,963
Factor Arrows
535,471

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 11, 53, 5471

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 53 x 5,471 = 172,238,022

This can also be written as 21 x 33 x 111 x 531 x 5,4711 = 172,238,022

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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