Q: What are the prime factors of the number 727,372?

 A: 2, 47, 53, 73

Why are those the prime factors of the number 727,372?

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 727,372

727,372
Factor Arrows
2363,686
Factor Arrows
2181,843
Factor Arrows
473,869
Factor Arrows
5373

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, 47, 53, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 47 x 53 x 73 = 727,372

This can also be written as 22 x 471 x 531 x 731 = 727,372

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


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