Q: What are the prime factors of the number 74,561,165?

 A: 5, 7, 41, 223, 233

Why are those the prime factors of the number 74,561,165?

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 74,561,165

74,561,165
Factor Arrows
514,912,233
Factor Arrows
72,130,319
Factor Arrows
4151,959
Factor Arrows
223233

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:

5, 7, 41, 223, 233

We can check our work by multiplying all of the prime factors together: 5 x 7 x 41 x 223 x 233 = 74,561,165

This can also be written as 51 x 71 x 411 x 2231 x 2331 = 74,561,165

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


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