Q: What are the prime factors of the number 790,040?

 A: 2, 5, 19751

Why are those the prime factors of the number 790,040?

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 790,040

790,040
Factor Arrows
2395,020
Factor Arrows
2197,510
Factor Arrows
298,755
Factor Arrows
519,751

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, 19751

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 19,751 = 790,040

This can also be written as 23 x 51 x 19,7511 = 790,040

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


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