Q: What are the prime factors of the number 225,111,552?

 A: 2, 3, 17, 37, 233

Why are those the prime factors of the number 225,111,552?

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 225,111,552

225,111,552
Factor Arrows
2112,555,776
Factor Arrows
256,277,888
Factor Arrows
228,138,944
Factor Arrows
214,069,472
Factor Arrows
27,034,736
Factor Arrows
23,517,368
Factor Arrows
21,758,684
Factor Arrows
2879,342
Factor Arrows
2439,671
Factor Arrows
3146,557
Factor Arrows
178,621
Factor Arrows
37233

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, 37, 233

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 17 x 37 x 233 = 225,111,552

This can also be written as 29 x 31 x 171 x 371 x 2331 = 225,111,552

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


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