Q: What are the prime factors of the number 791,028?

 A: 2, 3, 7, 43, 73

Why are those the prime factors of the number 791,028?

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 791,028

791,028
Factor Arrows
2395,514
Factor Arrows
2197,757
Factor Arrows
365,919
Factor Arrows
321,973
Factor Arrows
73,139
Factor Arrows
4373

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, 7, 43, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 43 x 73 = 791,028

This can also be written as 22 x 32 x 71 x 431 x 731 = 791,028

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


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