Q: What are the prime factors of the number 87,680,576?

 A: 2, 331, 4139

Why are those the prime factors of the number 87,680,576?

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 87,680,576

87,680,576
Factor Arrows
243,840,288
Factor Arrows
221,920,144
Factor Arrows
210,960,072
Factor Arrows
25,480,036
Factor Arrows
22,740,018
Factor Arrows
21,370,009
Factor Arrows
3314,139

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, 331, 4139

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 331 x 4,139 = 87,680,576

This can also be written as 26 x 3311 x 4,1391 = 87,680,576

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


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