Q: What are the prime factors of the number 171,003,344?

 A: 2, 19, 23, 37, 661

Why are those the prime factors of the number 171,003,344?

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 171,003,344

171,003,344
Factor Arrows
285,501,672
Factor Arrows
242,750,836
Factor Arrows
221,375,418
Factor Arrows
210,687,709
Factor Arrows
19562,511
Factor Arrows
2324,457
Factor Arrows
37661

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, 19, 23, 37, 661

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 23 x 37 x 661 = 171,003,344

This can also be written as 24 x 191 x 231 x 371 x 6611 = 171,003,344

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


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