Q: What are the prime factors of the number 31,522,203?

 A: 3, 73, 1777

Why are those the prime factors of the number 31,522,203?

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 31,522,203

31,522,203
Factor Arrows
310,507,401
Factor Arrows
33,502,467
Factor Arrows
31,167,489
Factor Arrows
3389,163
Factor Arrows
3129,721
Factor Arrows
731,777

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:

3, 73, 1777

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 73 x 1,777 = 31,522,203

This can also be written as 35 x 731 x 1,7771 = 31,522,203

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


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