Q: What are the prime factors of the number 120,044,430?

 A: 2, 3, 5, 11, 499

Why are those the prime factors of the number 120,044,430?

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 120,044,430

120,044,430
Factor Arrows
260,022,215
Factor Arrows
320,007,405
Factor Arrows
36,669,135
Factor Arrows
32,223,045
Factor Arrows
3741,015
Factor Arrows
3247,005
Factor Arrows
382,335
Factor Arrows
327,445
Factor Arrows
55,489
Factor Arrows
11499

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, 5, 11, 499

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 5 x 11 x 499 = 120,044,430

This can also be written as 21 x 37 x 51 x 111 x 4991 = 120,044,430

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


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