Q: What are the prime factors of the number 56,124,768?

 A: 2, 3, 7, 47, 1777

Why are those the prime factors of the number 56,124,768?

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 56,124,768

56,124,768
Factor Arrows
228,062,384
Factor Arrows
214,031,192
Factor Arrows
27,015,596
Factor Arrows
23,507,798
Factor Arrows
21,753,899
Factor Arrows
3584,633
Factor Arrows
783,519
Factor Arrows
471,777

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, 47, 1777

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 7 x 47 x 1,777 = 56,124,768

This can also be written as 25 x 31 x 71 x 471 x 1,7771 = 56,124,768

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


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