Q: What are the prime factors of the number 3,561,600?

 A: 2, 3, 5, 7, 53

Why are those the prime factors of the number 3,561,600?

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 3,561,600

3,561,600
Factor Arrows
21,780,800
Factor Arrows
2890,400
Factor Arrows
2445,200
Factor Arrows
2222,600
Factor Arrows
2111,300
Factor Arrows
255,650
Factor Arrows
227,825
Factor Arrows
39,275
Factor Arrows
51,855
Factor Arrows
5371
Factor Arrows
753

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, 7, 53

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 2 x 3 x 5 x 5 x 7 x 53 = 3,561,600

This can also be written as 27 x 31 x 52 x 71 x 531 = 3,561,600

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


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