Q: What are the prime factors of the number 894,400?

 A: 2, 5, 13, 43

Why are those the prime factors of the number 894,400?

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 894,400

894,400
Factor Arrows
2447,200
Factor Arrows
2223,600
Factor Arrows
2111,800
Factor Arrows
255,900
Factor Arrows
227,950
Factor Arrows
213,975
Factor Arrows
52,795
Factor Arrows
5559
Factor Arrows
1343

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, 5, 13, 43

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 5 x 5 x 13 x 43 = 894,400

This can also be written as 26 x 52 x 131 x 431 = 894,400

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


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