Q: What are the prime factors of the number 803,845?

 A: 5, 7, 17, 193

Why are those the prime factors of the number 803,845?

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 803,845

803,845
Factor Arrows
5160,769
Factor Arrows
722,967
Factor Arrows
73,281
Factor Arrows
17193

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:

5, 7, 17, 193

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 17 x 193 = 803,845

This can also be written as 51 x 72 x 171 x 1931 = 803,845

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


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