Q: What are the prime factors of the number 181,248?

 A: 2, 3, 59

Why are those the prime factors of the number 181,248?

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 181,248

181,248
Factor Arrows
290,624
Factor Arrows
245,312
Factor Arrows
222,656
Factor Arrows
211,328
Factor Arrows
25,664
Factor Arrows
22,832
Factor Arrows
21,416
Factor Arrows
2708
Factor Arrows
2354
Factor Arrows
2177
Factor Arrows
359

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, 59

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 3 x 59 = 181,248

This can also be written as 210 x 31 x 591 = 181,248

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


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