Q: What are the prime factors of the number 204,342,320?

 A: 2, 5, 7, 13, 28069

Why are those the prime factors of the number 204,342,320?

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 204,342,320

204,342,320
Factor Arrows
2102,171,160
Factor Arrows
251,085,580
Factor Arrows
225,542,790
Factor Arrows
212,771,395
Factor Arrows
52,554,279
Factor Arrows
7364,897
Factor Arrows
1328,069

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, 5, 7, 13, 28069

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 13 x 28,069 = 204,342,320

This can also be written as 24 x 51 x 71 x 131 x 28,0691 = 204,342,320

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


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