Q: What are the prime factors of the number 176,540?

 A: 2, 5, 7, 13, 97

Why are those the prime factors of the number 176,540?

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 176,540

176,540
Factor Arrows
288,270
Factor Arrows
244,135
Factor Arrows
58,827
Factor Arrows
71,261
Factor Arrows
1397

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, 7, 13, 97

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 13 x 97 = 176,540

This can also be written as 22 x 51 x 71 x 131 x 971 = 176,540

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


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