Q: What are the prime factors of the number 12,301,668?

 A: 2, 3, 31, 73, 151

Why are those the prime factors of the number 12,301,668?

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 12,301,668

12,301,668
Factor Arrows
26,150,834
Factor Arrows
23,075,417
Factor Arrows
31,025,139
Factor Arrows
3341,713
Factor Arrows
3111,023
Factor Arrows
73151

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, 31, 73, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 31 x 73 x 151 = 12,301,668

This can also be written as 22 x 32 x 311 x 731 x 1511 = 12,301,668

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


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