Q: What are the prime factors of the number 12,406,350?

 A: 2, 3, 5, 11, 73, 103

Why are those the prime factors of the number 12,406,350?

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 12,406,350

12,406,350
Factor Arrows
26,203,175
Factor Arrows
32,067,725
Factor Arrows
5413,545
Factor Arrows
582,709
Factor Arrows
117,519
Factor Arrows
73103

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, 73, 103

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 11 x 73 x 103 = 12,406,350

This can also be written as 21 x 31 x 52 x 111 x 731 x 1031 = 12,406,350

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


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