Q: What are the prime factors of the number 789,280?

 A: 2, 5, 4933

Why are those the prime factors of the number 789,280?

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 789,280

789,280
Factor Arrows
2394,640
Factor Arrows
2197,320
Factor Arrows
298,660
Factor Arrows
249,330
Factor Arrows
224,665
Factor Arrows
54,933

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, 5, 4933

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 4,933 = 789,280

This can also be written as 25 x 51 x 4,9331 = 789,280

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


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