Q: What are the prime factors of the number 531,171,675?

 A: 3, 5, 47, 5581

Why are those the prime factors of the number 531,171,675?

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 531,171,675

531,171,675
Factor Arrows
3177,057,225
Factor Arrows
359,019,075
Factor Arrows
319,673,025
Factor Arrows
36,557,675
Factor Arrows
51,311,535
Factor Arrows
5262,307
Factor Arrows
475,581

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:

3, 5, 47, 5581

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 5 x 47 x 5,581 = 531,171,675

This can also be written as 34 x 52 x 471 x 5,5811 = 531,171,675

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


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