Q: What are the prime factors of the number 16,174,560?

 A: 2, 3, 5, 31, 1087

Why are those the prime factors of the number 16,174,560?

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 16,174,560

16,174,560
Factor Arrows
28,087,280
Factor Arrows
24,043,640
Factor Arrows
22,021,820
Factor Arrows
21,010,910
Factor Arrows
2505,455
Factor Arrows
3168,485
Factor Arrows
533,697
Factor Arrows
311,087

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, 31, 1087

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 5 x 31 x 1,087 = 16,174,560

This can also be written as 25 x 31 x 51 x 311 x 1,0871 = 16,174,560

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


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