Q: What are the prime factors of the number 528,612?

 A: 2, 3, 7, 29, 31

Why are those the prime factors of the number 528,612?

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 528,612

528,612
Factor Arrows
2264,306
Factor Arrows
2132,153
Factor Arrows
344,051
Factor Arrows
76,293
Factor Arrows
7899
Factor Arrows
2931

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, 29, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 29 x 31 = 528,612

This can also be written as 22 x 31 x 72 x 291 x 311 = 528,612

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


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