Q: What are the prime factors of the number 3,665,600?

 A: 2, 5, 29, 79

Why are those the prime factors of the number 3,665,600?

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 3,665,600

3,665,600
Factor Arrows
21,832,800
Factor Arrows
2916,400
Factor Arrows
2458,200
Factor Arrows
2229,100
Factor Arrows
2114,550
Factor Arrows
257,275
Factor Arrows
511,455
Factor Arrows
52,291
Factor Arrows
2979

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, 29, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 29 x 79 = 3,665,600

This can also be written as 26 x 52 x 291 x 791 = 3,665,600

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


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