Q: What are the prime factors of the number 523,600?

 A: 2, 5, 7, 11, 17

Why are those the prime factors of the number 523,600?

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 523,600

523,600
Factor Arrows
2261,800
Factor Arrows
2130,900
Factor Arrows
265,450
Factor Arrows
232,725
Factor Arrows
56,545
Factor Arrows
51,309
Factor Arrows
7187
Factor Arrows
1117

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, 7, 11, 17

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 7 x 11 x 17 = 523,600

This can also be written as 24 x 52 x 71 x 111 x 171 = 523,600

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


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