Q: What are the prime factors of the number 80,081,760?

 A: 2, 3, 5, 11, 29, 523

Why are those the prime factors of the number 80,081,760?

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 80,081,760

80,081,760
Factor Arrows
240,040,880
Factor Arrows
220,020,440
Factor Arrows
210,010,220
Factor Arrows
25,005,110
Factor Arrows
22,502,555
Factor Arrows
3834,185
Factor Arrows
5166,837
Factor Arrows
1115,167
Factor Arrows
29523

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, 3, 5, 11, 29, 523

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 11 x 29 x 523 = 80,081,760

This can also be written as 25 x 31 x 51 x 111 x 291 x 5231 = 80,081,760

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


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