Q: What are the prime factors of the number 18,454,560?

 A: 2, 3, 5, 38447

Why are those the prime factors of the number 18,454,560?

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 18,454,560

18,454,560
Factor Arrows
29,227,280
Factor Arrows
24,613,640
Factor Arrows
22,306,820
Factor Arrows
21,153,410
Factor Arrows
2576,705
Factor Arrows
3192,235
Factor Arrows
538,447

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, 38447

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 38,447 = 18,454,560

This can also be written as 25 x 31 x 51 x 38,4471 = 18,454,560

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


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