Q: What are the prime factors of the number 175,766,745?

 A: 3, 5, 7, 11, 31, 4909

Why are those the prime factors of the number 175,766,745?

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 175,766,745

175,766,745
Factor Arrows
358,588,915
Factor Arrows
511,717,783
Factor Arrows
71,673,969
Factor Arrows
11152,179
Factor Arrows
314,909

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, 11, 31, 4909

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 11 x 31 x 4,909 = 175,766,745

This can also be written as 31 x 51 x 71 x 111 x 311 x 4,9091 = 175,766,745

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


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