Q: What are the prime factors of the number 478,720,008?

 A: 2, 3, 13, 511453

Why are those the prime factors of the number 478,720,008?

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 478,720,008

478,720,008
Factor Arrows
2239,360,004
Factor Arrows
2119,680,002
Factor Arrows
259,840,001
Factor Arrows
319,946,667
Factor Arrows
36,648,889
Factor Arrows
13511,453

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, 13, 511453

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 13 x 511,453 = 478,720,008

This can also be written as 23 x 32 x 131 x 511,4531 = 478,720,008

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


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