Q: What are the prime factors of the number 354,160?

 A: 2, 5, 19, 233

Why are those the prime factors of the number 354,160?

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 354,160

354,160
Factor Arrows
2177,080
Factor Arrows
288,540
Factor Arrows
244,270
Factor Arrows
222,135
Factor Arrows
54,427
Factor Arrows
19233

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, 5, 19, 233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 19 x 233 = 354,160

This can also be written as 24 x 51 x 191 x 2331 = 354,160

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


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