Q: What are the prime factors of the number 803,943?

 A: 3, 7, 1823

Why are those the prime factors of the number 803,943?

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 803,943

803,943
Factor Arrows
3267,981
Factor Arrows
389,327
Factor Arrows
712,761
Factor Arrows
71,823

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:

3, 7, 1823

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 7 x 1,823 = 803,943

This can also be written as 32 x 72 x 1,8231 = 803,943

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


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