Q: What are the prime factors of the number 56,551,223?

 A: 31, 89, 103, 199

Why are those the prime factors of the number 56,551,223?

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 56,551,223

56,551,223
Factor Arrows
311,824,233
Factor Arrows
8920,497
Factor Arrows
103199

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:

31, 89, 103, 199

We can check our work by multiplying all of the prime factors together: 31 x 89 x 103 x 199 = 56,551,223

This can also be written as 311 x 891 x 1031 x 1991 = 56,551,223

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


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