Q: What are the prime factors of the number 18,548,544?

 A: 2, 3, 7, 37, 373

Why are those the prime factors of the number 18,548,544?

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 18,548,544

18,548,544
Factor Arrows
29,274,272
Factor Arrows
24,637,136
Factor Arrows
22,318,568
Factor Arrows
21,159,284
Factor Arrows
2579,642
Factor Arrows
2289,821
Factor Arrows
396,607
Factor Arrows
713,801
Factor Arrows
37373

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, 7, 37, 373

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 3 x 7 x 37 x 373 = 18,548,544

This can also be written as 26 x 31 x 71 x 371 x 3731 = 18,548,544

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


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