Q: What are the prime factors of the number 28,258,260?

 A: 2, 3, 5, 23, 20477

Why are those the prime factors of the number 28,258,260?

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 28,258,260

28,258,260
Factor Arrows
214,129,130
Factor Arrows
27,064,565
Factor Arrows
32,354,855
Factor Arrows
5470,971
Factor Arrows
2320,477

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, 23, 20477

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 23 x 20,477 = 28,258,260

This can also be written as 22 x 31 x 51 x 231 x 20,4771 = 28,258,260

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


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