Q: What are the prime factors of the number 17,785,620?

 A: 2, 3, 5, 98809

Why are those the prime factors of the number 17,785,620?

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 17,785,620

17,785,620
Factor Arrows
28,892,810
Factor Arrows
24,446,405
Factor Arrows
31,482,135
Factor Arrows
3494,045
Factor Arrows
598,809

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, 98809

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 98,809 = 17,785,620

This can also be written as 22 x 32 x 51 x 98,8091 = 17,785,620

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


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