Q: What are the prime factors of the number 165,662,320?

 A: 2, 5, 37, 55967

Why are those the prime factors of the number 165,662,320?

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 165,662,320

165,662,320
Factor Arrows
282,831,160
Factor Arrows
241,415,580
Factor Arrows
220,707,790
Factor Arrows
210,353,895
Factor Arrows
52,070,779
Factor Arrows
3755,967

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, 37, 55967

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 37 x 55,967 = 165,662,320

This can also be written as 24 x 51 x 371 x 55,9671 = 165,662,320

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


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