Q: What are the prime factors of the number 225,011,520?

 A: 2, 3, 5, 8681

Why are those the prime factors of the number 225,011,520?

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 225,011,520

225,011,520
Factor Arrows
2112,505,760
Factor Arrows
256,252,880
Factor Arrows
228,126,440
Factor Arrows
214,063,220
Factor Arrows
27,031,610
Factor Arrows
23,515,805
Factor Arrows
31,171,935
Factor Arrows
3390,645
Factor Arrows
3130,215
Factor Arrows
343,405
Factor Arrows
58,681

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, 8681

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 3 x 3 x 3 x 3 x 5 x 8,681 = 225,011,520

This can also be written as 26 x 34 x 51 x 8,6811 = 225,011,520

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


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