Q: What are the prime factors of the number 5,479,173?

 A: 3, 7, 29, 2999

Why are those the prime factors of the number 5,479,173?

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 5,479,173

5,479,173
Factor Arrows
31,826,391
Factor Arrows
3608,797
Factor Arrows
786,971
Factor Arrows
292,999

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, 7, 29, 2999

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 29 x 2,999 = 5,479,173

This can also be written as 32 x 71 x 291 x 2,9991 = 5,479,173

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


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