Q: What are the prime factors of the number 478,208,224?

 A: 2, 13, 1149539

Why are those the prime factors of the number 478,208,224?

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 478,208,224

478,208,224
Factor Arrows
2239,104,112
Factor Arrows
2119,552,056
Factor Arrows
259,776,028
Factor Arrows
229,888,014
Factor Arrows
214,944,007
Factor Arrows
131,149,539

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, 13, 1149539

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 1,149,539 = 478,208,224

This can also be written as 25 x 131 x 1,149,5391 = 478,208,224

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


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