Q: What are the prime factors of the number 401,204,610?

 A: 2, 3, 5, 97, 15319

Why are those the prime factors of the number 401,204,610?

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 401,204,610

401,204,610
Factor Arrows
2200,602,305
Factor Arrows
366,867,435
Factor Arrows
322,289,145
Factor Arrows
37,429,715
Factor Arrows
51,485,943
Factor Arrows
9715,319

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, 97, 15319

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 97 x 15,319 = 401,204,610

This can also be written as 21 x 33 x 51 x 971 x 15,3191 = 401,204,610

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


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