Q: What are the prime factors of the number 869,535?

 A: 3, 5, 19, 113

Why are those the prime factors of the number 869,535?

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 869,535

869,535
Factor Arrows
3289,845
Factor Arrows
396,615
Factor Arrows
332,205
Factor Arrows
310,735
Factor Arrows
52,147
Factor Arrows
19113

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, 19, 113

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 19 x 113 = 869,535

This can also be written as 34 x 51 x 191 x 1131 = 869,535

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


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