Q: What are the prime factors of the number 86,658,304?

 A: 2, 167, 2027

Why are those the prime factors of the number 86,658,304?

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 86,658,304

86,658,304
Factor Arrows
243,329,152
Factor Arrows
221,664,576
Factor Arrows
210,832,288
Factor Arrows
25,416,144
Factor Arrows
22,708,072
Factor Arrows
21,354,036
Factor Arrows
2677,018
Factor Arrows
2338,509
Factor Arrows
1672,027

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, 167, 2027

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 2 x 2 x 167 x 2,027 = 86,658,304

This can also be written as 28 x 1671 x 2,0271 = 86,658,304

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


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