Q: What are the prime factors of the number 494,784?

 A: 2, 3, 859

Why are those the prime factors of the number 494,784?

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 494,784

494,784
Factor Arrows
2247,392
Factor Arrows
2123,696
Factor Arrows
261,848
Factor Arrows
230,924
Factor Arrows
215,462
Factor Arrows
27,731
Factor Arrows
32,577
Factor Arrows
3859

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, 859

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 859 = 494,784

This can also be written as 26 x 32 x 8591 = 494,784

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


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