Q: What are the prime factors of the number 342,804?

 A: 2, 3, 7, 11, 53

Why are those the prime factors of the number 342,804?

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 342,804

342,804
Factor Arrows
2171,402
Factor Arrows
285,701
Factor Arrows
328,567
Factor Arrows
74,081
Factor Arrows
7583
Factor Arrows
1153

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, 11, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 11 x 53 = 342,804

This can also be written as 22 x 31 x 72 x 111 x 531 = 342,804

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


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