Q: What are the prime factors of the number 357,328?

 A: 2, 23, 971

Why are those the prime factors of the number 357,328?

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 357,328

357,328
Factor Arrows
2178,664
Factor Arrows
289,332
Factor Arrows
244,666
Factor Arrows
222,333
Factor Arrows
23971

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, 23, 971

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 23 x 971 = 357,328

This can also be written as 24 x 231 x 9711 = 357,328

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


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