Q: What are the prime factors of the number 28,903,648?

 A: 2, 191, 4729

Why are those the prime factors of the number 28,903,648?

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 28,903,648

28,903,648
Factor Arrows
214,451,824
Factor Arrows
27,225,912
Factor Arrows
23,612,956
Factor Arrows
21,806,478
Factor Arrows
2903,239
Factor Arrows
1914,729

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, 191, 4729

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 191 x 4,729 = 28,903,648

This can also be written as 25 x 1911 x 4,7291 = 28,903,648

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


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