Q: What are the prime factors of the number 7,790,328?

 A: 2, 3, 7, 13, 29, 41

Why are those the prime factors of the number 7,790,328?

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 7,790,328

7,790,328
Factor Arrows
23,895,164
Factor Arrows
21,947,582
Factor Arrows
2973,791
Factor Arrows
3324,597
Factor Arrows
3108,199
Factor Arrows
715,457
Factor Arrows
131,189
Factor Arrows
2941

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, 13, 29, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 7 x 13 x 29 x 41 = 7,790,328

This can also be written as 23 x 32 x 71 x 131 x 291 x 411 = 7,790,328

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


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