Q: What are the prime factors of the number 28,575,575?

 A: 5, 7, 23327

Why are those the prime factors of the number 28,575,575?

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 28,575,575

28,575,575
Factor Arrows
55,715,115
Factor Arrows
51,143,023
Factor Arrows
7163,289
Factor Arrows
723,327

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, 23327

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 7 x 23,327 = 28,575,575

This can also be written as 52 x 72 x 23,3271 = 28,575,575

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


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