Q: What are the prime factors of the number 14,513,520?

 A: 2, 3, 5, 7, 53, 163

Why are those the prime factors of the number 14,513,520?

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 14,513,520

14,513,520
Factor Arrows
27,256,760
Factor Arrows
23,628,380
Factor Arrows
21,814,190
Factor Arrows
2907,095
Factor Arrows
3302,365
Factor Arrows
560,473
Factor Arrows
78,639
Factor Arrows
53163

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, 7, 53, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 7 x 53 x 163 = 14,513,520

This can also be written as 24 x 31 x 51 x 71 x 531 x 1631 = 14,513,520

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


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