Q: What are the prime factors of the number 530,472?

 A: 2, 3, 23, 31

Why are those the prime factors of the number 530,472?

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 530,472

530,472
Factor Arrows
2265,236
Factor Arrows
2132,618
Factor Arrows
266,309
Factor Arrows
322,103
Factor Arrows
23961
Factor Arrows
3131

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, 23, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 23 x 31 x 31 = 530,472

This can also be written as 23 x 31 x 231 x 312 = 530,472

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


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