Q: What are the prime factors of the number 330,144,544?

 A: 2, 31, 47, 73, 97

Why are those the prime factors of the number 330,144,544?

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 330,144,544

330,144,544
Factor Arrows
2165,072,272
Factor Arrows
282,536,136
Factor Arrows
241,268,068
Factor Arrows
220,634,034
Factor Arrows
210,317,017
Factor Arrows
31332,807
Factor Arrows
477,081
Factor Arrows
7397

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, 31, 47, 73, 97

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 31 x 47 x 73 x 97 = 330,144,544

This can also be written as 25 x 311 x 471 x 731 x 971 = 330,144,544

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


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