Q: What are the prime factors of the number 120,224,680?

 A: 2, 5, 17, 23, 7687

Why are those the prime factors of the number 120,224,680?

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 120,224,680

120,224,680
Factor Arrows
260,112,340
Factor Arrows
230,056,170
Factor Arrows
215,028,085
Factor Arrows
53,005,617
Factor Arrows
17176,801
Factor Arrows
237,687

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, 5, 17, 23, 7687

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 17 x 23 x 7,687 = 120,224,680

This can also be written as 23 x 51 x 171 x 231 x 7,6871 = 120,224,680

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


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