Q: What are the prime factors of the number 12,270,600?

 A: 2, 3, 5, 17, 401

Why are those the prime factors of the number 12,270,600?

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 12,270,600

12,270,600
Factor Arrows
26,135,300
Factor Arrows
23,067,650
Factor Arrows
21,533,825
Factor Arrows
3511,275
Factor Arrows
3170,425
Factor Arrows
534,085
Factor Arrows
56,817
Factor Arrows
17401

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, 17, 401

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 5 x 17 x 401 = 12,270,600

This can also be written as 23 x 32 x 52 x 171 x 4011 = 12,270,600

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


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