Q: What are the prime factors of the number 653,904?

 A: 2, 3, 19, 239

Why are those the prime factors of the number 653,904?

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 653,904

653,904
Factor Arrows
2326,952
Factor Arrows
2163,476
Factor Arrows
281,738
Factor Arrows
240,869
Factor Arrows
313,623
Factor Arrows
34,541
Factor Arrows
19239

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, 239

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 239 = 653,904

This can also be written as 24 x 32 x 191 x 2391 = 653,904

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


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