Q: What are the prime factors of the number 578,864?

 A: 2, 11, 13, 23

Why are those the prime factors of the number 578,864?

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 578,864

578,864
Factor Arrows
2289,432
Factor Arrows
2144,716
Factor Arrows
272,358
Factor Arrows
236,179
Factor Arrows
113,289
Factor Arrows
11299
Factor Arrows
1323

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, 11, 13, 23

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 11 x 13 x 23 = 578,864

This can also be written as 24 x 112 x 131 x 231 = 578,864

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


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