Q: What are the prime factors of the number 577,408?

 A: 2, 13, 347

Why are those the prime factors of the number 577,408?

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 577,408

577,408
Factor Arrows
2288,704
Factor Arrows
2144,352
Factor Arrows
272,176
Factor Arrows
236,088
Factor Arrows
218,044
Factor Arrows
29,022
Factor Arrows
24,511
Factor Arrows
13347

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, 347

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 13 x 347 = 577,408

This can also be written as 27 x 131 x 3471 = 577,408

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


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