Q: What are the prime factors of the number 165,603,174?

 A: 2, 3, 11, 23, 127, 859

Why are those the prime factors of the number 165,603,174?

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 165,603,174

165,603,174
Factor Arrows
282,801,587
Factor Arrows
327,600,529
Factor Arrows
112,509,139
Factor Arrows
23109,093
Factor Arrows
127859

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, 11, 23, 127, 859

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 23 x 127 x 859 = 165,603,174

This can also be written as 21 x 31 x 111 x 231 x 1271 x 8591 = 165,603,174

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


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