Q: What are the prime factors of the number 818,784?

 A: 2, 3, 2843

Why are those the prime factors of the number 818,784?

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 818,784

818,784
Factor Arrows
2409,392
Factor Arrows
2204,696
Factor Arrows
2102,348
Factor Arrows
251,174
Factor Arrows
225,587
Factor Arrows
38,529
Factor Arrows
32,843

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, 2843

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 2,843 = 818,784

This can also be written as 25 x 32 x 2,8431 = 818,784

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


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