Q: What are the prime factors of the number 980,928?

 A: 2, 3, 13, 131

Why are those the prime factors of the number 980,928?

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 980,928

980,928
Factor Arrows
2490,464
Factor Arrows
2245,232
Factor Arrows
2122,616
Factor Arrows
261,308
Factor Arrows
230,654
Factor Arrows
215,327
Factor Arrows
35,109
Factor Arrows
31,703
Factor Arrows
13131

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, 13, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 13 x 131 = 980,928

This can also be written as 26 x 32 x 131 x 1311 = 980,928

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


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