Q: What are the prime factors of the number 84,701,120?

 A: 2, 5, 7, 37813

Why are those the prime factors of the number 84,701,120?

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 84,701,120

84,701,120
Factor Arrows
242,350,560
Factor Arrows
221,175,280
Factor Arrows
210,587,640
Factor Arrows
25,293,820
Factor Arrows
22,646,910
Factor Arrows
21,323,455
Factor Arrows
5264,691
Factor Arrows
737,813

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, 37813

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 37,813 = 84,701,120

This can also be written as 26 x 51 x 71 x 37,8131 = 84,701,120

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


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