Q: What are the prime factors of the number 315,114,150?

 A: 2, 3, 5, 13, 53, 3049

Why are those the prime factors of the number 315,114,150?

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 315,114,150

315,114,150
Factor Arrows
2157,557,075
Factor Arrows
352,519,025
Factor Arrows
510,503,805
Factor Arrows
52,100,761
Factor Arrows
13161,597
Factor Arrows
533,049

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, 13, 53, 3049

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 13 x 53 x 3,049 = 315,114,150

This can also be written as 21 x 31 x 52 x 131 x 531 x 3,0491 = 315,114,150

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


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