Q: What are the prime factors of the number 7,912,688?

 A: 2, 7, 31, 43, 53

Why are those the prime factors of the number 7,912,688?

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 7,912,688

7,912,688
Factor Arrows
23,956,344
Factor Arrows
21,978,172
Factor Arrows
2989,086
Factor Arrows
2494,543
Factor Arrows
770,649
Factor Arrows
312,279
Factor Arrows
4353

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, 31, 43, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 31 x 43 x 53 = 7,912,688

This can also be written as 24 x 71 x 311 x 431 x 531 = 7,912,688

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


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