Q: What are the prime factors of the number 32,221,120?

 A: 2, 5, 17, 5923

Why are those the prime factors of the number 32,221,120?

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 32,221,120

32,221,120
Factor Arrows
216,110,560
Factor Arrows
28,055,280
Factor Arrows
24,027,640
Factor Arrows
22,013,820
Factor Arrows
21,006,910
Factor Arrows
2503,455
Factor Arrows
5100,691
Factor Arrows
175,923

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, 5923

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 5 x 17 x 5,923 = 32,221,120

This can also be written as 26 x 51 x 171 x 5,9231 = 32,221,120

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


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