Q: What are the prime factors of the number 8,720,334?

 A: 2, 3, 7, 9887

Why are those the prime factors of the number 8,720,334?

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 8,720,334

8,720,334
Factor Arrows
24,360,167
Factor Arrows
31,453,389
Factor Arrows
3484,463
Factor Arrows
769,209
Factor Arrows
79,887

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, 9887

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 9,887 = 8,720,334

This can also be written as 21 x 32 x 72 x 9,8871 = 8,720,334

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


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