Q: What are the prime factors of the number 165,358,496?

 A: 2, 719, 7187

Why are those the prime factors of the number 165,358,496?

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 165,358,496

165,358,496
Factor Arrows
282,679,248
Factor Arrows
241,339,624
Factor Arrows
220,669,812
Factor Arrows
210,334,906
Factor Arrows
25,167,453
Factor Arrows
7197,187

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, 719, 7187

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 719 x 7,187 = 165,358,496

This can also be written as 25 x 7191 x 7,1871 = 165,358,496

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


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