Q: What are the prime factors of the number 405,434,028?

 A: 2, 3, 733, 46093

Why are those the prime factors of the number 405,434,028?

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 405,434,028

405,434,028
Factor Arrows
2202,717,014
Factor Arrows
2101,358,507
Factor Arrows
333,786,169
Factor Arrows
73346,093

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, 733, 46093

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 733 x 46,093 = 405,434,028

This can also be written as 22 x 31 x 7331 x 46,0931 = 405,434,028

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


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