Q: What are the prime factors of the number 328,548?

 A: 2, 3, 11, 19, 131

Why are those the prime factors of the number 328,548?

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 328,548

328,548
Factor Arrows
2164,274
Factor Arrows
282,137
Factor Arrows
327,379
Factor Arrows
112,489
Factor Arrows
19131

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, 11, 19, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 19 x 131 = 328,548

This can also be written as 22 x 31 x 111 x 191 x 1311 = 328,548

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


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