Q: What are the prime factors of the number 85,236,789?

 A: 3, 11, 37, 69809

Why are those the prime factors of the number 85,236,789?

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 85,236,789

85,236,789
Factor Arrows
328,412,263
Factor Arrows
112,582,933
Factor Arrows
3769,809

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:

3, 11, 37, 69809

We can check our work by multiplying all of the prime factors together: 3 x 11 x 37 x 69,809 = 85,236,789

This can also be written as 31 x 111 x 371 x 69,8091 = 85,236,789

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


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