Q: What are the prime factors of the number 18,966,048?

 A: 2, 3, 31, 6373

Why are those the prime factors of the number 18,966,048?

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 18,966,048

18,966,048
Factor Arrows
29,483,024
Factor Arrows
24,741,512
Factor Arrows
22,370,756
Factor Arrows
21,185,378
Factor Arrows
2592,689
Factor Arrows
3197,563
Factor Arrows
316,373

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, 31, 6373

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 31 x 6,373 = 18,966,048

This can also be written as 25 x 31 x 311 x 6,3731 = 18,966,048

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


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