Q: What are the prime factors of the number 659,376?

 A: 2, 3, 19, 241

Why are those the prime factors of the number 659,376?

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 659,376

659,376
Factor Arrows
2329,688
Factor Arrows
2164,844
Factor Arrows
282,422
Factor Arrows
241,211
Factor Arrows
313,737
Factor Arrows
34,579
Factor Arrows
19241

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, 19, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 19 x 241 = 659,376

This can also be written as 24 x 32 x 191 x 2411 = 659,376

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


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