Q: What are the prime factors of the number 8,751,680?

 A: 2, 5, 7, 3907

Why are those the prime factors of the number 8,751,680?

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 8,751,680

8,751,680
Factor Arrows
24,375,840
Factor Arrows
22,187,920
Factor Arrows
21,093,960
Factor Arrows
2546,980
Factor Arrows
2273,490
Factor Arrows
2136,745
Factor Arrows
527,349
Factor Arrows
73,907

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, 7, 3907

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 5 x 7 x 3,907 = 8,751,680

This can also be written as 26 x 51 x 71 x 3,9071 = 8,751,680

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


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