Q: What are the prime factors of the number 29,352,720?

 A: 2, 3, 5, 19, 41, 157

Why are those the prime factors of the number 29,352,720?

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 29,352,720

29,352,720
Factor Arrows
214,676,360
Factor Arrows
27,338,180
Factor Arrows
23,669,090
Factor Arrows
21,834,545
Factor Arrows
3611,515
Factor Arrows
5122,303
Factor Arrows
196,437
Factor Arrows
41157

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, 5, 19, 41, 157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 19 x 41 x 157 = 29,352,720

This can also be written as 24 x 31 x 51 x 191 x 411 x 1571 = 29,352,720

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


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