Q: What are the prime factors of the number 204,210,342?

 A: 2, 3, 7, 71, 1087

Why are those the prime factors of the number 204,210,342?

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 204,210,342

204,210,342
Factor Arrows
2102,105,171
Factor Arrows
334,035,057
Factor Arrows
311,345,019
Factor Arrows
33,781,673
Factor Arrows
7540,239
Factor Arrows
777,177
Factor Arrows
711,087

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, 7, 71, 1087

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 7 x 71 x 1,087 = 204,210,342

This can also be written as 21 x 33 x 72 x 711 x 1,0871 = 204,210,342

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


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