Q: What are the prime factors of the number 20,305,035?

 A: 3, 5, 653, 691

Why are those the prime factors of the number 20,305,035?

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 20,305,035

20,305,035
Factor Arrows
36,768,345
Factor Arrows
32,256,115
Factor Arrows
5451,223
Factor Arrows
653691

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:

3, 5, 653, 691

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 653 x 691 = 20,305,035

This can also be written as 32 x 51 x 6531 x 6911 = 20,305,035

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


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