Q: What are the prime factors of the number 106,167,321?

 A: 3, 13, 53, 439

Why are those the prime factors of the number 106,167,321?

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 106,167,321

106,167,321
Factor Arrows
335,389,107
Factor Arrows
311,796,369
Factor Arrows
33,932,123
Factor Arrows
13302,471
Factor Arrows
1323,267
Factor Arrows
53439

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, 13, 53, 439

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 13 x 13 x 53 x 439 = 106,167,321

This can also be written as 33 x 132 x 531 x 4391 = 106,167,321

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


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