Q: What are the prime factors of the number 12,351,444?

 A: 2, 3, 7, 19, 71, 109

Why are those the prime factors of the number 12,351,444?

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 12,351,444

12,351,444
Factor Arrows
26,175,722
Factor Arrows
23,087,861
Factor Arrows
31,029,287
Factor Arrows
7147,041
Factor Arrows
197,739
Factor Arrows
71109

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, 7, 19, 71, 109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 19 x 71 x 109 = 12,351,444

This can also be written as 22 x 31 x 71 x 191 x 711 x 1091 = 12,351,444

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


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