Q: What are the prime factors of the number 357,653,072?

 A: 2, 7, 17, 187843

Why are those the prime factors of the number 357,653,072?

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 357,653,072

357,653,072
Factor Arrows
2178,826,536
Factor Arrows
289,413,268
Factor Arrows
244,706,634
Factor Arrows
222,353,317
Factor Arrows
73,193,331
Factor Arrows
17187,843

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, 7, 17, 187843

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 17 x 187,843 = 357,653,072

This can also be written as 24 x 71 x 171 x 187,8431 = 357,653,072

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


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