Q: What are the prime factors of the number 13,422,375?

 A: 3, 5, 41, 97

Why are those the prime factors of the number 13,422,375?

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 13,422,375

13,422,375
Factor Arrows
34,474,125
Factor Arrows
31,491,375
Factor Arrows
3497,125
Factor Arrows
599,425
Factor Arrows
519,885
Factor Arrows
53,977
Factor Arrows
4197

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, 41, 97

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 5 x 41 x 97 = 13,422,375

This can also be written as 33 x 53 x 411 x 971 = 13,422,375

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


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