Q: What are the prime factors of the number 12,445,853?

 A: 7, 17, 67, 223

Why are those the prime factors of the number 12,445,853?

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 12,445,853

12,445,853
Factor Arrows
71,777,979
Factor Arrows
7253,997
Factor Arrows
1714,941
Factor Arrows
67223

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:

7, 17, 67, 223

We can check our work by multiplying all of the prime factors together: 7 x 7 x 17 x 67 x 223 = 12,445,853

This can also be written as 72 x 171 x 671 x 2231 = 12,445,853

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


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