Q: What are the prime factors of the number 28,927,080?

 A: 2, 3, 5, 7, 13, 883

Why are those the prime factors of the number 28,927,080?

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 28,927,080

28,927,080
Factor Arrows
214,463,540
Factor Arrows
27,231,770
Factor Arrows
23,615,885
Factor Arrows
31,205,295
Factor Arrows
3401,765
Factor Arrows
580,353
Factor Arrows
711,479
Factor Arrows
13883

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, 13, 883

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 7 x 13 x 883 = 28,927,080

This can also be written as 23 x 32 x 51 x 71 x 131 x 8831 = 28,927,080

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


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