Q: What are the prime factors of the number 146,208?

 A: 2, 3, 1523

Why are those the prime factors of the number 146,208?

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 146,208

146,208
Factor Arrows
273,104
Factor Arrows
236,552
Factor Arrows
218,276
Factor Arrows
29,138
Factor Arrows
24,569
Factor Arrows
31,523

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, 1523

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 1,523 = 146,208

This can also be written as 25 x 31 x 1,5231 = 146,208

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


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