Q: What are the prime factors of the number 55,643,005?

 A: 5, 11, 37, 739

Why are those the prime factors of the number 55,643,005?

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 55,643,005

55,643,005
Factor Arrows
511,128,601
Factor Arrows
111,011,691
Factor Arrows
3727,343
Factor Arrows
37739

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:

5, 11, 37, 739

We can check our work by multiplying all of the prime factors together: 5 x 11 x 37 x 37 x 739 = 55,643,005

This can also be written as 51 x 111 x 372 x 7391 = 55,643,005

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


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