Q: What are the prime factors of the number 853,315,582?

 A: 2, 7, 53, 199, 5779

Why are those the prime factors of the number 853,315,582?

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 853,315,582

853,315,582
Factor Arrows
2426,657,791
Factor Arrows
760,951,113
Factor Arrows
531,150,021
Factor Arrows
1995,779

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, 53, 199, 5779

We can check our work by multiplying all of the prime factors together: 2 x 7 x 53 x 199 x 5,779 = 853,315,582

This can also be written as 21 x 71 x 531 x 1991 x 5,7791 = 853,315,582

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


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