Q: What are the prime factors of the number 146,016?

 A: 2, 3, 13

Why are those the prime factors of the number 146,016?

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 146,016

146,016
Factor Arrows
273,008
Factor Arrows
236,504
Factor Arrows
218,252
Factor Arrows
29,126
Factor Arrows
24,563
Factor Arrows
31,521
Factor Arrows
3507
Factor Arrows
3169
Factor Arrows
1313

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, 13

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 13 x 13 = 146,016

This can also be written as 25 x 33 x 132 = 146,016

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


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