Q: What are the prime factors of the number 478,338,424?

 A: 2, 101, 239, 2477

Why are those the prime factors of the number 478,338,424?

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 478,338,424

478,338,424
Factor Arrows
2239,169,212
Factor Arrows
2119,584,606
Factor Arrows
259,792,303
Factor Arrows
101592,003
Factor Arrows
2392,477

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, 101, 239, 2477

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 101 x 239 x 2,477 = 478,338,424

This can also be written as 23 x 1011 x 2391 x 2,4771 = 478,338,424

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


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