Q: What are the prime factors of the number 12,765,056?

 A: 2, 31, 3217

Why are those the prime factors of the number 12,765,056?

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 12,765,056

12,765,056
Factor Arrows
26,382,528
Factor Arrows
23,191,264
Factor Arrows
21,595,632
Factor Arrows
2797,816
Factor Arrows
2398,908
Factor Arrows
2199,454
Factor Arrows
299,727
Factor Arrows
313,217

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, 31, 3217

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 2 x 31 x 3,217 = 12,765,056

This can also be written as 27 x 311 x 3,2171 = 12,765,056

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


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