Q: What are the prime factors of the number 80,815,850?

 A: 2, 5, 61, 26497

Why are those the prime factors of the number 80,815,850?

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 80,815,850

80,815,850
Factor Arrows
240,407,925
Factor Arrows
58,081,585
Factor Arrows
51,616,317
Factor Arrows
6126,497

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, 61, 26497

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 61 x 26,497 = 80,815,850

This can also be written as 21 x 52 x 611 x 26,4971 = 80,815,850

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


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