Q: What are the prime factors of the number 109,248?

 A: 2, 3, 569

Why are those the prime factors of the number 109,248?

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 109,248

109,248
Factor Arrows
254,624
Factor Arrows
227,312
Factor Arrows
213,656
Factor Arrows
26,828
Factor Arrows
23,414
Factor Arrows
21,707
Factor Arrows
3569

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, 569

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 569 = 109,248

This can also be written as 26 x 31 x 5691 = 109,248

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


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