Q: What are the prime factors of the number 852,000?

 A: 2, 3, 5, 71

Why are those the prime factors of the number 852,000?

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 852,000

852,000
Factor Arrows
2426,000
Factor Arrows
2213,000
Factor Arrows
2106,500
Factor Arrows
253,250
Factor Arrows
226,625
Factor Arrows
38,875
Factor Arrows
51,775
Factor Arrows
5355
Factor Arrows
571

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, 5, 71

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 5 x 71 = 852,000

This can also be written as 25 x 31 x 53 x 711 = 852,000

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


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