Q: What are the prime factors of the number 774,915?

 A: 3, 5, 19, 2719

Why are those the prime factors of the number 774,915?

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 774,915

774,915
Factor Arrows
3258,305
Factor Arrows
551,661
Factor Arrows
192,719

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, 5, 19, 2719

We can check our work by multiplying all of the prime factors together: 3 x 5 x 19 x 2,719 = 774,915

This can also be written as 31 x 51 x 191 x 2,7191 = 774,915

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


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