Q: What are the prime factors of the number 16,314,480?

 A: 2, 3, 5, 7, 13, 83

Why are those the prime factors of the number 16,314,480?

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 16,314,480

16,314,480
Factor Arrows
28,157,240
Factor Arrows
24,078,620
Factor Arrows
22,039,310
Factor Arrows
21,019,655
Factor Arrows
3339,885
Factor Arrows
3113,295
Factor Arrows
337,765
Factor Arrows
57,553
Factor Arrows
71,079
Factor Arrows
1383

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, 5, 7, 13, 83

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 5 x 7 x 13 x 83 = 16,314,480

This can also be written as 24 x 33 x 51 x 71 x 131 x 831 = 16,314,480

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


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