Q: What are the prime factors of the number 86,113,368?

 A: 2, 3, 11, 4027

Why are those the prime factors of the number 86,113,368?

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 86,113,368

86,113,368
Factor Arrows
243,056,684
Factor Arrows
221,528,342
Factor Arrows
210,764,171
Factor Arrows
33,588,057
Factor Arrows
31,196,019
Factor Arrows
3398,673
Factor Arrows
3132,891
Factor Arrows
344,297
Factor Arrows
114,027

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, 3, 11, 4027

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 11 x 4,027 = 86,113,368

This can also be written as 23 x 35 x 111 x 4,0271 = 86,113,368

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


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