Q: What are the prime factors of the number 230,547,520?

 A: 2, 5, 7, 19, 5417

Why are those the prime factors of the number 230,547,520?

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 230,547,520

230,547,520
Factor Arrows
2115,273,760
Factor Arrows
257,636,880
Factor Arrows
228,818,440
Factor Arrows
214,409,220
Factor Arrows
27,204,610
Factor Arrows
23,602,305
Factor Arrows
5720,461
Factor Arrows
7102,923
Factor Arrows
195,417

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, 19, 5417

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 7 x 19 x 5,417 = 230,547,520

This can also be written as 26 x 51 x 71 x 191 x 5,4171 = 230,547,520

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


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