Q: What are the prime factors of the number 14,314,240?

 A: 2, 5, 53, 211

Why are those the prime factors of the number 14,314,240?

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 14,314,240

14,314,240
Factor Arrows
27,157,120
Factor Arrows
23,578,560
Factor Arrows
21,789,280
Factor Arrows
2894,640
Factor Arrows
2447,320
Factor Arrows
2223,660
Factor Arrows
2111,830
Factor Arrows
255,915
Factor Arrows
511,183
Factor Arrows
53211

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, 53, 211

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 2 x 5 x 53 x 211 = 14,314,240

This can also be written as 28 x 51 x 531 x 2111 = 14,314,240

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


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