Q: What are the prime factors of the number 14,572,480?

 A: 2, 5, 13, 31, 113

Why are those the prime factors of the number 14,572,480?

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 14,572,480

14,572,480
Factor Arrows
27,286,240
Factor Arrows
23,643,120
Factor Arrows
21,821,560
Factor Arrows
2910,780
Factor Arrows
2455,390
Factor Arrows
2227,695
Factor Arrows
545,539
Factor Arrows
133,503
Factor Arrows
31113

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, 13, 31, 113

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 5 x 13 x 31 x 113 = 14,572,480

This can also be written as 26 x 51 x 131 x 311 x 1131 = 14,572,480

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


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