Q: What are the prime factors of the number 850,395?

 A: 3, 5, 7, 13, 89

Why are those the prime factors of the number 850,395?

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 850,395

850,395
Factor Arrows
3283,465
Factor Arrows
556,693
Factor Arrows
78,099
Factor Arrows
71,157
Factor Arrows
1389

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, 5, 7, 13, 89

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 7 x 13 x 89 = 850,395

This can also be written as 31 x 51 x 72 x 131 x 891 = 850,395

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


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