Q: What are the prime factors of the number 28,888,860?

 A: 2, 3, 5, 7, 11, 13, 37

Why are those the prime factors of the number 28,888,860?

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 28,888,860

28,888,860
Factor Arrows
214,444,430
Factor Arrows
27,222,215
Factor Arrows
32,407,405
Factor Arrows
5481,481
Factor Arrows
768,783
Factor Arrows
116,253
Factor Arrows
13481
Factor Arrows
1337

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, 7, 11, 13, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 11 x 13 x 13 x 37 = 28,888,860

This can also be written as 22 x 31 x 51 x 71 x 111 x 132 x 371 = 28,888,860

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


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