Q: What are the prime factors of the number 12,476,322?

 A: 2, 3, 29, 31, 257

Why are those the prime factors of the number 12,476,322?

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 12,476,322

12,476,322
Factor Arrows
26,238,161
Factor Arrows
32,079,387
Factor Arrows
3693,129
Factor Arrows
3231,043
Factor Arrows
297,967
Factor Arrows
31257

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, 29, 31, 257

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 29 x 31 x 257 = 12,476,322

This can also be written as 21 x 33 x 291 x 311 x 2571 = 12,476,322

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


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