Q: What are the prime factors of the number 553,600?

 A: 2, 5, 173

Why are those the prime factors of the number 553,600?

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 553,600

553,600
Factor Arrows
2276,800
Factor Arrows
2138,400
Factor Arrows
269,200
Factor Arrows
234,600
Factor Arrows
217,300
Factor Arrows
28,650
Factor Arrows
24,325
Factor Arrows
5865
Factor Arrows
5173

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, 173

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 2 x 5 x 5 x 173 = 553,600

This can also be written as 27 x 52 x 1731 = 553,600

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


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