Q: What are the prime factors of the number 104,448?

 A: 2, 3, 17

Why are those the prime factors of the number 104,448?

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 104,448

104,448
Factor Arrows
252,224
Factor Arrows
226,112
Factor Arrows
213,056
Factor Arrows
26,528
Factor Arrows
23,264
Factor Arrows
21,632
Factor Arrows
2816
Factor Arrows
2408
Factor Arrows
2204
Factor Arrows
2102
Factor Arrows
251
Factor Arrows
317

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, 17

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 2 x 2 x 2 x 2 x 2 x 3 x 17 = 104,448

This can also be written as 211 x 31 x 171 = 104,448

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


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