Q: What are the prime factors of the number 989,744?

 A: 2, 7, 8837

Why are those the prime factors of the number 989,744?

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 989,744

989,744
Factor Arrows
2494,872
Factor Arrows
2247,436
Factor Arrows
2123,718
Factor Arrows
261,859
Factor Arrows
78,837

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, 7, 8837

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 8,837 = 989,744

This can also be written as 24 x 71 x 8,8371 = 989,744

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


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