Q: What are the prime factors of the number 553,450,656?

 A: 2, 3, 11, 23, 22787

Why are those the prime factors of the number 553,450,656?

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 553,450,656

553,450,656
Factor Arrows
2276,725,328
Factor Arrows
2138,362,664
Factor Arrows
269,181,332
Factor Arrows
234,590,666
Factor Arrows
217,295,333
Factor Arrows
35,765,111
Factor Arrows
11524,101
Factor Arrows
2322,787

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, 11, 23, 22787

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 11 x 23 x 22,787 = 553,450,656

This can also be written as 25 x 31 x 111 x 231 x 22,7871 = 553,450,656

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


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