Q: What are the prime factors of the number 8,215,344?

 A: 2, 3, 2113

Why are those the prime factors of the number 8,215,344?

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 8,215,344

8,215,344
Factor Arrows
24,107,672
Factor Arrows
22,053,836
Factor Arrows
21,026,918
Factor Arrows
2513,459
Factor Arrows
3171,153
Factor Arrows
357,051
Factor Arrows
319,017
Factor Arrows
36,339
Factor Arrows
32,113

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, 2113

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 2,113 = 8,215,344

This can also be written as 24 x 35 x 2,1131 = 8,215,344

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


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