Q: What are the prime factors of the number 85,065,336?

 A: 2, 3, 199, 1979

Why are those the prime factors of the number 85,065,336?

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 85,065,336

85,065,336
Factor Arrows
242,532,668
Factor Arrows
221,266,334
Factor Arrows
210,633,167
Factor Arrows
33,544,389
Factor Arrows
31,181,463
Factor Arrows
3393,821
Factor Arrows
1991,979

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, 199, 1979

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 199 x 1,979 = 85,065,336

This can also be written as 23 x 33 x 1991 x 1,9791 = 85,065,336

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


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