Q: What are the prime factors of the number 117,134,745?

 A: 3, 5, 7, 13, 23, 41

Why are those the prime factors of the number 117,134,745?

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 117,134,745

117,134,745
Factor Arrows
339,044,915
Factor Arrows
57,808,983
Factor Arrows
71,115,569
Factor Arrows
7159,367
Factor Arrows
1312,259
Factor Arrows
13943
Factor Arrows
2341

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:

3, 5, 7, 13, 23, 41

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 7 x 13 x 13 x 23 x 41 = 117,134,745

This can also be written as 31 x 51 x 72 x 132 x 231 x 411 = 117,134,745

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


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