Q: What are the prime factors of the number 7,099,125?

 A: 3, 5, 11, 1721

Why are those the prime factors of the number 7,099,125?

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 7,099,125

7,099,125
Factor Arrows
32,366,375
Factor Arrows
5473,275
Factor Arrows
594,655
Factor Arrows
518,931
Factor Arrows
111,721

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, 11, 1721

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 11 x 1,721 = 7,099,125

This can also be written as 31 x 53 x 111 x 1,7211 = 7,099,125

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


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