Q: What are the prime factors of the number 300,213,120?

 A: 2, 3, 5, 156361

Why are those the prime factors of the number 300,213,120?

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 300,213,120

300,213,120
Factor Arrows
2150,106,560
Factor Arrows
275,053,280
Factor Arrows
237,526,640
Factor Arrows
218,763,320
Factor Arrows
29,381,660
Factor Arrows
24,690,830
Factor Arrows
22,345,415
Factor Arrows
3781,805
Factor Arrows
5156,361

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, 156361

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 156,361 = 300,213,120

This can also be written as 27 x 31 x 51 x 156,3611 = 300,213,120

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


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