Q: What are the prime factors of the number 2,353,320?

 A: 2, 3, 5, 2179

Why are those the prime factors of the number 2,353,320?

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 2,353,320

2,353,320
Factor Arrows
21,176,660
Factor Arrows
2588,330
Factor Arrows
2294,165
Factor Arrows
398,055
Factor Arrows
332,685
Factor Arrows
310,895
Factor Arrows
52,179

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, 5, 2179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 2,179 = 2,353,320

This can also be written as 23 x 33 x 51 x 2,1791 = 2,353,320

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


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