Q: What are the prime factors of the number 803,584?

 A: 2, 43, 73

Why are those the prime factors of the number 803,584?

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 803,584

803,584
Factor Arrows
2401,792
Factor Arrows
2200,896
Factor Arrows
2100,448
Factor Arrows
250,224
Factor Arrows
225,112
Factor Arrows
212,556
Factor Arrows
26,278
Factor Arrows
23,139
Factor Arrows
4373

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, 43, 73

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 2 x 43 x 73 = 803,584

This can also be written as 28 x 431 x 731 = 803,584

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


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