Q: What are the prime factors of the number 20,202,553?

 A: 7, 71, 5807

Why are those the prime factors of the number 20,202,553?

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 20,202,553

20,202,553
Factor Arrows
72,886,079
Factor Arrows
7412,297
Factor Arrows
715,807

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:

7, 71, 5807

We can check our work by multiplying all of the prime factors together: 7 x 7 x 71 x 5,807 = 20,202,553

This can also be written as 72 x 711 x 5,8071 = 20,202,553

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


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