Q: What are the prime factors of the number 13,661,600?

 A: 2, 5, 17077

Why are those the prime factors of the number 13,661,600?

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 13,661,600

13,661,600
Factor Arrows
26,830,800
Factor Arrows
23,415,400
Factor Arrows
21,707,700
Factor Arrows
2853,850
Factor Arrows
2426,925
Factor Arrows
585,385
Factor Arrows
517,077

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, 5, 17077

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 17,077 = 13,661,600

This can also be written as 25 x 52 x 17,0771 = 13,661,600

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


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