Q: What are the prime factors of the number 300,213,200?

 A: 2, 5, 7, 17, 53

Why are those the prime factors of the number 300,213,200?

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 300,213,200

300,213,200
Factor Arrows
2150,106,600
Factor Arrows
275,053,300
Factor Arrows
237,526,650
Factor Arrows
218,763,325
Factor Arrows
53,752,665
Factor Arrows
5750,533
Factor Arrows
7107,219
Factor Arrows
715,317
Factor Arrows
17901
Factor Arrows
1753

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, 17, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 7 x 7 x 17 x 17 x 53 = 300,213,200

This can also be written as 24 x 52 x 72 x 172 x 531 = 300,213,200

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


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