Q: What are the prime factors of the number 12,071,232?

 A: 2, 3, 19, 1103

Why are those the prime factors of the number 12,071,232?

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 12,071,232

12,071,232
Factor Arrows
26,035,616
Factor Arrows
23,017,808
Factor Arrows
21,508,904
Factor Arrows
2754,452
Factor Arrows
2377,226
Factor Arrows
2188,613
Factor Arrows
362,871
Factor Arrows
320,957
Factor Arrows
191,103

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, 19, 1103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 19 x 1,103 = 12,071,232

This can also be written as 26 x 32 x 191 x 1,1031 = 12,071,232

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


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