Q: What are the prime factors of the number 4,305,231?

 A: 3, 7, 2531

Why are those the prime factors of the number 4,305,231?

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 4,305,231

4,305,231
Factor Arrows
31,435,077
Factor Arrows
3478,359
Factor Arrows
3159,453
Factor Arrows
353,151
Factor Arrows
317,717
Factor Arrows
72,531

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:

3, 7, 2531

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 2,531 = 4,305,231

This can also be written as 35 x 71 x 2,5311 = 4,305,231

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


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