Q: What are the prime factors of the number 56,127,456?

 A: 2, 3, 7, 11, 2531

Why are those the prime factors of the number 56,127,456?

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 56,127,456

56,127,456
Factor Arrows
228,063,728
Factor Arrows
214,031,864
Factor Arrows
27,015,932
Factor Arrows
23,507,966
Factor Arrows
21,753,983
Factor Arrows
3584,661
Factor Arrows
3194,887
Factor Arrows
727,841
Factor Arrows
112,531

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, 11, 2531

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 11 x 2,531 = 56,127,456

This can also be written as 25 x 32 x 71 x 111 x 2,5311 = 56,127,456

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


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