Q: What are the prime factors of the number 85,508,038?

 A: 2, 7, 11, 7211

Why are those the prime factors of the number 85,508,038?

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 85,508,038

85,508,038
Factor Arrows
242,754,019
Factor Arrows
76,107,717
Factor Arrows
7872,531
Factor Arrows
1179,321
Factor Arrows
117,211

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, 7, 11, 7211

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 11 x 11 x 7,211 = 85,508,038

This can also be written as 21 x 72 x 112 x 7,2111 = 85,508,038

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


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