Q: What are the prime factors of the number 553,066,668?

 A: 2, 3, 7, 11, 19, 10501

Why are those the prime factors of the number 553,066,668?

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 553,066,668

553,066,668
Factor Arrows
2276,533,334
Factor Arrows
2138,266,667
Factor Arrows
346,088,889
Factor Arrows
315,362,963
Factor Arrows
72,194,709
Factor Arrows
11199,519
Factor Arrows
1910,501

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, 7, 11, 19, 10501

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 11 x 19 x 10,501 = 553,066,668

This can also be written as 22 x 32 x 71 x 111 x 191 x 10,5011 = 553,066,668

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


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