Q: What are the prime factors of the number 605,872?

 A: 2, 19, 1993

Why are those the prime factors of the number 605,872?

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 605,872

605,872
Factor Arrows
2302,936
Factor Arrows
2151,468
Factor Arrows
275,734
Factor Arrows
237,867
Factor Arrows
191,993

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, 19, 1993

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 1,993 = 605,872

This can also be written as 24 x 191 x 1,9931 = 605,872

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


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