Q: What are the prime factors of the number 132,549,480?

 A: 2, 3, 5, 7, 89, 197

Why are those the prime factors of the number 132,549,480?

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 132,549,480

132,549,480
Factor Arrows
266,274,740
Factor Arrows
233,137,370
Factor Arrows
216,568,685
Factor Arrows
35,522,895
Factor Arrows
31,840,965
Factor Arrows
3613,655
Factor Arrows
5122,731
Factor Arrows
717,533
Factor Arrows
89197

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, 7, 89, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 7 x 89 x 197 = 132,549,480

This can also be written as 23 x 33 x 51 x 71 x 891 x 1971 = 132,549,480

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


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