Q: What are the prime factors of the number 869,407?

 A: 7, 11, 1613

Why are those the prime factors of the number 869,407?

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 869,407

869,407
Factor Arrows
7124,201
Factor Arrows
717,743
Factor Arrows
111,613

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:

7, 11, 1613

We can check our work by multiplying all of the prime factors together: 7 x 7 x 11 x 1,613 = 869,407

This can also be written as 72 x 111 x 1,6131 = 869,407

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


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