Q: What are the prime factors of the number 1,289,694?

 A: 2, 3, 7, 30707

Why are those the prime factors of the number 1,289,694?

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 1,289,694

1,289,694
Factor Arrows
2644,847
Factor Arrows
3214,949
Factor Arrows
730,707

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, 3, 7, 30707

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 30,707 = 1,289,694

This can also be written as 21 x 31 x 71 x 30,7071 = 1,289,694

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


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