Q: What are the prime factors of the number 869,442?

 A: 2, 3, 7, 127, 163

Why are those the prime factors of the number 869,442?

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 869,442

869,442
Factor Arrows
2434,721
Factor Arrows
3144,907
Factor Arrows
720,701
Factor Arrows
127163

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, 3, 7, 127, 163

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 127 x 163 = 869,442

This can also be written as 21 x 31 x 71 x 1271 x 1631 = 869,442

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


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