Q: What are the prime factors of the number 554,205,540?

 A: 2, 3, 5, 7, 79, 16703

Why are those the prime factors of the number 554,205,540?

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 554,205,540

554,205,540
Factor Arrows
2277,102,770
Factor Arrows
2138,551,385
Factor Arrows
346,183,795
Factor Arrows
59,236,759
Factor Arrows
71,319,537
Factor Arrows
7916,703

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, 5, 7, 79, 16703

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 79 x 16,703 = 554,205,540

This can also be written as 22 x 31 x 51 x 71 x 791 x 16,7031 = 554,205,540

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


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