Q: What are the prime factors of the number 897,561?

 A: 3, 7, 1583

Why are those the prime factors of the number 897,561?

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 897,561

897,561
Factor Arrows
3299,187
Factor Arrows
399,729
Factor Arrows
333,243
Factor Arrows
311,081
Factor Arrows
71,583

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, 7, 1583

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 1,583 = 897,561

This can also be written as 34 x 71 x 1,5831 = 897,561

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


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