Q: What are the prime factors of the number 12,270,285?

 A: 3, 5, 10099

Why are those the prime factors of the number 12,270,285?

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 12,270,285

12,270,285
Factor Arrows
34,090,095
Factor Arrows
31,363,365
Factor Arrows
3454,455
Factor Arrows
3151,485
Factor Arrows
350,495
Factor Arrows
510,099

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:

3, 5, 10099

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 10,099 = 12,270,285

This can also be written as 35 x 51 x 10,0991 = 12,270,285

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


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