Q: What are the prime factors of the number 8,616,384?

 A: 2, 3, 7, 2137

Why are those the prime factors of the number 8,616,384?

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 8,616,384

8,616,384
Factor Arrows
24,308,192
Factor Arrows
22,154,096
Factor Arrows
21,077,048
Factor Arrows
2538,524
Factor Arrows
2269,262
Factor Arrows
2134,631
Factor Arrows
344,877
Factor Arrows
314,959
Factor Arrows
72,137

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, 2137

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 3 x 3 x 7 x 2,137 = 8,616,384

This can also be written as 26 x 32 x 71 x 2,1371 = 8,616,384

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


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