Q: What are the prime factors of the number 551,808?

 A: 2, 3, 479

Why are those the prime factors of the number 551,808?

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 551,808

551,808
Factor Arrows
2275,904
Factor Arrows
2137,952
Factor Arrows
268,976
Factor Arrows
234,488
Factor Arrows
217,244
Factor Arrows
28,622
Factor Arrows
24,311
Factor Arrows
31,437
Factor Arrows
3479

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, 479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 479 = 551,808

This can also be written as 27 x 32 x 4791 = 551,808

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


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