Q: What are the prime factors of the number 324,736?

 A: 2, 43, 59

Why are those the prime factors of the number 324,736?

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 324,736

324,736
Factor Arrows
2162,368
Factor Arrows
281,184
Factor Arrows
240,592
Factor Arrows
220,296
Factor Arrows
210,148
Factor Arrows
25,074
Factor Arrows
22,537
Factor Arrows
4359

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, 43, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 43 x 59 = 324,736

This can also be written as 27 x 431 x 591 = 324,736

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


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