Q: What are the prime factors of the number 12,276,342?

 A: 2, 3, 13, 23, 2281

Why are those the prime factors of the number 12,276,342?

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 12,276,342

12,276,342
Factor Arrows
26,138,171
Factor Arrows
32,046,057
Factor Arrows
3682,019
Factor Arrows
1352,463
Factor Arrows
232,281

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, 13, 23, 2281

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 13 x 23 x 2,281 = 12,276,342

This can also be written as 21 x 32 x 131 x 231 x 2,2811 = 12,276,342

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


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