Q: What are the prime factors of the number 29,485,856?

 A: 2, 157, 5869

Why are those the prime factors of the number 29,485,856?

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 29,485,856

29,485,856
Factor Arrows
214,742,928
Factor Arrows
27,371,464
Factor Arrows
23,685,732
Factor Arrows
21,842,866
Factor Arrows
2921,433
Factor Arrows
1575,869

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, 157, 5869

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 157 x 5,869 = 29,485,856

This can also be written as 25 x 1571 x 5,8691 = 29,485,856

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


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