Q: What are the prime factors of the number 146,880?

 A: 2, 3, 5, 17

Why are those the prime factors of the number 146,880?

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 146,880

146,880
Factor Arrows
273,440
Factor Arrows
236,720
Factor Arrows
218,360
Factor Arrows
29,180
Factor Arrows
24,590
Factor Arrows
22,295
Factor Arrows
3765
Factor Arrows
3255
Factor Arrows
385
Factor Arrows
517

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, 5, 17

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 17 = 146,880

This can also be written as 26 x 33 x 51 x 171 = 146,880

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


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