Q: What are the prime factors of the number 173,654,439?

 A: 3, 7, 17, 23, 21149

Why are those the prime factors of the number 173,654,439?

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 173,654,439

173,654,439
Factor Arrows
357,884,813
Factor Arrows
78,269,259
Factor Arrows
17486,427
Factor Arrows
2321,149

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, 7, 17, 23, 21149

We can check our work by multiplying all of the prime factors together: 3 x 7 x 17 x 23 x 21,149 = 173,654,439

This can also be written as 31 x 71 x 171 x 231 x 21,1491 = 173,654,439

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


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