Q: What are the prime factors of the number 146,560?

 A: 2, 5, 229

Why are those the prime factors of the number 146,560?

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 146,560

146,560
Factor Arrows
273,280
Factor Arrows
236,640
Factor Arrows
218,320
Factor Arrows
29,160
Factor Arrows
24,580
Factor Arrows
22,290
Factor Arrows
21,145
Factor Arrows
5229

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, 5, 229

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 2 x 5 x 229 = 146,560

This can also be written as 27 x 51 x 2291 = 146,560

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


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