Q: What are the prime factors of the number 551,205,664?

 A: 2, 293, 58789

Why are those the prime factors of the number 551,205,664?

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 551,205,664

551,205,664
Factor Arrows
2275,602,832
Factor Arrows
2137,801,416
Factor Arrows
268,900,708
Factor Arrows
234,450,354
Factor Arrows
217,225,177
Factor Arrows
29358,789

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, 293, 58789

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 293 x 58,789 = 551,205,664

This can also be written as 25 x 2931 x 58,7891 = 551,205,664

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


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