Q: What are the prime factors of the number 166,301,312?

 A: 2, 29, 71, 631

Why are those the prime factors of the number 166,301,312?

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 166,301,312

166,301,312
Factor Arrows
283,150,656
Factor Arrows
241,575,328
Factor Arrows
220,787,664
Factor Arrows
210,393,832
Factor Arrows
25,196,916
Factor Arrows
22,598,458
Factor Arrows
21,299,229
Factor Arrows
2944,801
Factor Arrows
71631

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, 29, 71, 631

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 29 x 71 x 631 = 166,301,312

This can also be written as 27 x 291 x 711 x 6311 = 166,301,312

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


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