Q: What are the prime factors of the number 915,993?

 A: 3, 13, 7829

Why are those the prime factors of the number 915,993?

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 915,993

915,993
Factor Arrows
3305,331
Factor Arrows
3101,777
Factor Arrows
137,829

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, 13, 7829

We can check our work by multiplying all of the prime factors together: 3 x 3 x 13 x 7,829 = 915,993

This can also be written as 32 x 131 x 7,8291 = 915,993

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


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