Q: What are the prime factors of the number 576,400?

 A: 2, 5, 11, 131

Why are those the prime factors of the number 576,400?

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 576,400

576,400
Factor Arrows
2288,200
Factor Arrows
2144,100
Factor Arrows
272,050
Factor Arrows
236,025
Factor Arrows
57,205
Factor Arrows
51,441
Factor Arrows
11131

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, 11, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 11 x 131 = 576,400

This can also be written as 24 x 52 x 111 x 1311 = 576,400

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


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