Q: What are the prime factors of the number 173,014,257?

 A: 3, 13, 23, 37, 401

Why are those the prime factors of the number 173,014,257?

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 173,014,257

173,014,257
Factor Arrows
357,671,419
Factor Arrows
134,436,263
Factor Arrows
13341,251
Factor Arrows
2314,837
Factor Arrows
37401

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:

3, 13, 23, 37, 401

We can check our work by multiplying all of the prime factors together: 3 x 13 x 13 x 23 x 37 x 401 = 173,014,257

This can also be written as 31 x 132 x 231 x 371 x 4011 = 173,014,257

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


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