Q: What are the prime factors of the number 520,758?

 A: 2, 3, 7, 4133

Why are those the prime factors of the number 520,758?

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 520,758

520,758
Factor Arrows
2260,379
Factor Arrows
386,793
Factor Arrows
328,931
Factor Arrows
74,133

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, 7, 4133

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 4,133 = 520,758

This can also be written as 21 x 32 x 71 x 4,1331 = 520,758

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


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