Q: What are the prime factors of the number 20,244,350?

 A: 2, 5, 7, 8263

Why are those the prime factors of the number 20,244,350?

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 20,244,350

20,244,350
Factor Arrows
210,122,175
Factor Arrows
52,024,435
Factor Arrows
5404,887
Factor Arrows
757,841
Factor Arrows
78,263

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, 5, 7, 8263

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 7 x 7 x 8,263 = 20,244,350

This can also be written as 21 x 52 x 72 x 8,2631 = 20,244,350

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


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