Q: What are the prime factors of the number 162,976?

 A: 2, 11, 463

Why are those the prime factors of the number 162,976?

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 162,976

162,976
Factor Arrows
281,488
Factor Arrows
240,744
Factor Arrows
220,372
Factor Arrows
210,186
Factor Arrows
25,093
Factor Arrows
11463

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, 11, 463

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 463 = 162,976

This can also be written as 25 x 111 x 4631 = 162,976

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


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