Q: What are the prime factors of the number 83,719,160?

 A: 2, 5, 7, 37, 8081

Why are those the prime factors of the number 83,719,160?

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 83,719,160

83,719,160
Factor Arrows
241,859,580
Factor Arrows
220,929,790
Factor Arrows
210,464,895
Factor Arrows
52,092,979
Factor Arrows
7298,997
Factor Arrows
378,081

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, 7, 37, 8081

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 37 x 8,081 = 83,719,160

This can also be written as 23 x 51 x 71 x 371 x 8,0811 = 83,719,160

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


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