Q: What are the prime factors of the number 117,353,720?

 A: 2, 5, 11, 17, 29, 541

Why are those the prime factors of the number 117,353,720?

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 117,353,720

117,353,720
Factor Arrows
258,676,860
Factor Arrows
229,338,430
Factor Arrows
214,669,215
Factor Arrows
52,933,843
Factor Arrows
11266,713
Factor Arrows
1715,689
Factor Arrows
29541

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, 5, 11, 17, 29, 541

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 11 x 17 x 29 x 541 = 117,353,720

This can also be written as 23 x 51 x 111 x 171 x 291 x 5411 = 117,353,720

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


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