Q: What are the prime factors of the number 29,175,872?

 A: 2, 11, 41443

Why are those the prime factors of the number 29,175,872?

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 29,175,872

29,175,872
Factor Arrows
214,587,936
Factor Arrows
27,293,968
Factor Arrows
23,646,984
Factor Arrows
21,823,492
Factor Arrows
2911,746
Factor Arrows
2455,873
Factor Arrows
1141,443

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, 11, 41443

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 11 x 41,443 = 29,175,872

This can also be written as 26 x 111 x 41,4431 = 29,175,872

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


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