Q: What are the prime factors of the number 28,620,090?

 A: 2, 3, 5, 318001

Why are those the prime factors of the number 28,620,090?

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 28,620,090

28,620,090
Factor Arrows
214,310,045
Factor Arrows
34,770,015
Factor Arrows
31,590,005
Factor Arrows
5318,001

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, 318001

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 318,001 = 28,620,090

This can also be written as 21 x 32 x 51 x 318,0011 = 28,620,090

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


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