Q: What are the prime factors of the number 12,255,210?

 A: 2, 3, 5, 11, 12379

Why are those the prime factors of the number 12,255,210?

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 12,255,210

12,255,210
Factor Arrows
26,127,605
Factor Arrows
32,042,535
Factor Arrows
3680,845
Factor Arrows
5136,169
Factor Arrows
1112,379

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, 11, 12379

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 11 x 12,379 = 12,255,210

This can also be written as 21 x 32 x 51 x 111 x 12,3791 = 12,255,210

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


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