Q: What are the prime factors of the number 328,744?

 A: 2, 13, 29, 109

Why are those the prime factors of the number 328,744?

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 328,744

328,744
Factor Arrows
2164,372
Factor Arrows
282,186
Factor Arrows
241,093
Factor Arrows
133,161
Factor Arrows
29109

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, 13, 29, 109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 29 x 109 = 328,744

This can also be written as 23 x 131 x 291 x 1091 = 328,744

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


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