Q: What are the prime factors of the number 12,020,808?

 A: 2, 3, 31, 107, 151

Why are those the prime factors of the number 12,020,808?

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 12,020,808

12,020,808
Factor Arrows
26,010,404
Factor Arrows
23,005,202
Factor Arrows
21,502,601
Factor Arrows
3500,867
Factor Arrows
3116,157
Factor Arrows
107151

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, 107, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 31 x 107 x 151 = 12,020,808

This can also be written as 23 x 31 x 311 x 1071 x 1511 = 12,020,808

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


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