Q: What are the prime factors of the number 117,576,408?

 A: 2, 3, 19, 401, 643

Why are those the prime factors of the number 117,576,408?

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 117,576,408

117,576,408
Factor Arrows
258,788,204
Factor Arrows
229,394,102
Factor Arrows
214,697,051
Factor Arrows
34,899,017
Factor Arrows
19257,843
Factor Arrows
401643

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, 19, 401, 643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 19 x 401 x 643 = 117,576,408

This can also be written as 23 x 31 x 191 x 4011 x 6431 = 117,576,408

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


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