Q: What are the prime factors of the number 12,146,616?

 A: 2, 3, 73, 2311

Why are those the prime factors of the number 12,146,616?

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 12,146,616

12,146,616
Factor Arrows
26,073,308
Factor Arrows
23,036,654
Factor Arrows
21,518,327
Factor Arrows
3506,109
Factor Arrows
3168,703
Factor Arrows
732,311

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, 73, 2311

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 73 x 2,311 = 12,146,616

This can also be written as 23 x 32 x 731 x 2,3111 = 12,146,616

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


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