Q: What are the prime factors of the number 56,801,536?

 A: 2, 11, 23, 877

Why are those the prime factors of the number 56,801,536?

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 56,801,536

56,801,536
Factor Arrows
228,400,768
Factor Arrows
214,200,384
Factor Arrows
27,100,192
Factor Arrows
23,550,096
Factor Arrows
21,775,048
Factor Arrows
2887,524
Factor Arrows
2443,762
Factor Arrows
2221,881
Factor Arrows
1120,171
Factor Arrows
23877

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, 11, 23, 877

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 2 x 11 x 23 x 877 = 56,801,536

This can also be written as 28 x 111 x 231 x 8771 = 56,801,536

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


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