Q: What are the prime factors of the number 16,496,928?

 A: 2, 3, 7, 167

Why are those the prime factors of the number 16,496,928?

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 16,496,928

16,496,928
Factor Arrows
28,248,464
Factor Arrows
24,124,232
Factor Arrows
22,062,116
Factor Arrows
21,031,058
Factor Arrows
2515,529
Factor Arrows
3171,843
Factor Arrows
357,281
Factor Arrows
78,183
Factor Arrows
71,169
Factor Arrows
7167

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, 167

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 7 x 7 x 7 x 167 = 16,496,928

This can also be written as 25 x 32 x 73 x 1671 = 16,496,928

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


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