Q: What are the prime factors of the number 120,404,608?

 A: 2, 17, 55333

Why are those the prime factors of the number 120,404,608?

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 120,404,608

120,404,608
Factor Arrows
260,202,304
Factor Arrows
230,101,152
Factor Arrows
215,050,576
Factor Arrows
27,525,288
Factor Arrows
23,762,644
Factor Arrows
21,881,322
Factor Arrows
2940,661
Factor Arrows
1755,333

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, 17, 55333

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 17 x 55,333 = 120,404,608

This can also be written as 27 x 171 x 55,3331 = 120,404,608

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


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