Q: What are the prime factors of the number 7,708,288?

 A: 2, 7, 1229

Why are those the prime factors of the number 7,708,288?

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 7,708,288

7,708,288
Factor Arrows
23,854,144
Factor Arrows
21,927,072
Factor Arrows
2963,536
Factor Arrows
2481,768
Factor Arrows
2240,884
Factor Arrows
2120,442
Factor Arrows
260,221
Factor Arrows
78,603
Factor Arrows
71,229

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, 7, 1229

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 2 x 7 x 7 x 1,229 = 7,708,288

This can also be written as 27 x 72 x 1,2291 = 7,708,288

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


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