Q: What are the prime factors of the number 120,233,248?

 A: 2, 17, 13001

Why are those the prime factors of the number 120,233,248?

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 120,233,248

120,233,248
Factor Arrows
260,116,624
Factor Arrows
230,058,312
Factor Arrows
215,029,156
Factor Arrows
27,514,578
Factor Arrows
23,757,289
Factor Arrows
17221,017
Factor Arrows
1713,001

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, 13001

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 17 x 13,001 = 120,233,248

This can also be written as 25 x 172 x 13,0011 = 120,233,248

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


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