Q: What are the prime factors of the number 28,525,176?

 A: 2, 3, 41, 3221

Why are those the prime factors of the number 28,525,176?

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 28,525,176

28,525,176
Factor Arrows
214,262,588
Factor Arrows
27,131,294
Factor Arrows
23,565,647
Factor Arrows
31,188,549
Factor Arrows
3396,183
Factor Arrows
3132,061
Factor Arrows
413,221

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, 41, 3221

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 41 x 3,221 = 28,525,176

This can also be written as 23 x 33 x 411 x 3,2211 = 28,525,176

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


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