Q: What are the prime factors of the number 847,200?

 A: 2, 3, 5, 353

Why are those the prime factors of the number 847,200?

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 847,200

847,200
Factor Arrows
2423,600
Factor Arrows
2211,800
Factor Arrows
2105,900
Factor Arrows
252,950
Factor Arrows
226,475
Factor Arrows
38,825
Factor Arrows
51,765
Factor Arrows
5353

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, 353

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 353 = 847,200

This can also be written as 25 x 31 x 52 x 3531 = 847,200

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


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