Q: What are the prime factors of the number 74,148,072?

 A: 2, 3, 1103, 2801

Why are those the prime factors of the number 74,148,072?

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 74,148,072

74,148,072
Factor Arrows
237,074,036
Factor Arrows
218,537,018
Factor Arrows
29,268,509
Factor Arrows
33,089,503
Factor Arrows
1,1032,801

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, 1103, 2801

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 1,103 x 2,801 = 74,148,072

This can also be written as 23 x 31 x 1,1031 x 2,8011 = 74,148,072

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


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