Q: What are the prime factors of the number 16,361,568?

 A: 2, 3, 29, 653

Why are those the prime factors of the number 16,361,568?

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 16,361,568

16,361,568
Factor Arrows
28,180,784
Factor Arrows
24,090,392
Factor Arrows
22,045,196
Factor Arrows
21,022,598
Factor Arrows
2511,299
Factor Arrows
3170,433
Factor Arrows
356,811
Factor Arrows
318,937
Factor Arrows
29653

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, 29, 653

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 29 x 653 = 16,361,568

This can also be written as 25 x 33 x 291 x 6531 = 16,361,568

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


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