Q: What are the prime factors of the number 12,854,772?

 A: 2, 3, 7, 29, 1759

Why are those the prime factors of the number 12,854,772?

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 12,854,772

12,854,772
Factor Arrows
26,427,386
Factor Arrows
23,213,693
Factor Arrows
31,071,231
Factor Arrows
3357,077
Factor Arrows
751,011
Factor Arrows
291,759

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, 7, 29, 1759

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 29 x 1,759 = 12,854,772

This can also be written as 22 x 32 x 71 x 291 x 1,7591 = 12,854,772

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


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