Q: What are the prime factors of the number 553,661,504?

 A: 2, 11, 29, 47, 577

Why are those the prime factors of the number 553,661,504?

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 553,661,504

553,661,504
Factor Arrows
2276,830,752
Factor Arrows
2138,415,376
Factor Arrows
269,207,688
Factor Arrows
234,603,844
Factor Arrows
217,301,922
Factor Arrows
28,650,961
Factor Arrows
11786,451
Factor Arrows
2927,119
Factor Arrows
47577

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, 11, 29, 47, 577

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 11 x 29 x 47 x 577 = 553,661,504

This can also be written as 26 x 111 x 291 x 471 x 5771 = 553,661,504

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


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