Q: What are the prime factors of the number 438,504?

 A: 2, 3, 11, 151

Why are those the prime factors of the number 438,504?

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 438,504

438,504
Factor Arrows
2219,252
Factor Arrows
2109,626
Factor Arrows
254,813
Factor Arrows
318,271
Factor Arrows
111,661
Factor Arrows
11151

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, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 11 x 151 = 438,504

This can also be written as 23 x 31 x 112 x 1511 = 438,504

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


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