Q: What are the prime factors of the number 172,607,312?

 A: 2, 47, 89, 2579

Why are those the prime factors of the number 172,607,312?

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 172,607,312

172,607,312
Factor Arrows
286,303,656
Factor Arrows
243,151,828
Factor Arrows
221,575,914
Factor Arrows
210,787,957
Factor Arrows
47229,531
Factor Arrows
892,579

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, 47, 89, 2579

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 47 x 89 x 2,579 = 172,607,312

This can also be written as 24 x 471 x 891 x 2,5791 = 172,607,312

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


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