Q: What are the prime factors of the number 406,015,524?

 A: 2, 3, 1571, 2393

Why are those the prime factors of the number 406,015,524?

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 406,015,524

406,015,524
Factor Arrows
2203,007,762
Factor Arrows
2101,503,881
Factor Arrows
333,834,627
Factor Arrows
311,278,209
Factor Arrows
33,759,403
Factor Arrows
1,5712,393

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, 1571, 2393

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 1,571 x 2,393 = 406,015,524

This can also be written as 22 x 33 x 1,5711 x 2,3931 = 406,015,524

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


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