Q: What are the prime factors of the number 361,117,135?

 A: 5, 19, 23, 29, 41, 139

Why are those the prime factors of the number 361,117,135?

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 361,117,135

361,117,135
Factor Arrows
572,223,427
Factor Arrows
193,801,233
Factor Arrows
23165,271
Factor Arrows
295,699
Factor Arrows
41139

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:

5, 19, 23, 29, 41, 139

We can check our work by multiplying all of the prime factors together: 5 x 19 x 23 x 29 x 41 x 139 = 361,117,135

This can also be written as 51 x 191 x 231 x 291 x 411 x 1391 = 361,117,135

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


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