Q: What are the prime factors of the number 228,864?

 A: 2, 3, 149

Why are those the prime factors of the number 228,864?

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 228,864

228,864
Factor Arrows
2114,432
Factor Arrows
257,216
Factor Arrows
228,608
Factor Arrows
214,304
Factor Arrows
27,152
Factor Arrows
23,576
Factor Arrows
21,788
Factor Arrows
2894
Factor Arrows
2447
Factor Arrows
3149

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, 149

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 3 x 149 = 228,864

This can also be written as 29 x 31 x 1491 = 228,864

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


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