Q: What are the prime factors of the number 74,336,805?

 A: 3, 5, 23, 89, 269

Why are those the prime factors of the number 74,336,805?

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 74,336,805

74,336,805
Factor Arrows
324,778,935
Factor Arrows
38,259,645
Factor Arrows
32,753,215
Factor Arrows
5550,643
Factor Arrows
2323,941
Factor Arrows
89269

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:

3, 5, 23, 89, 269

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 23 x 89 x 269 = 74,336,805

This can also be written as 33 x 51 x 231 x 891 x 2691 = 74,336,805

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


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