Q: What are the prime factors of the number 371,736?

 A: 2, 3, 1721

Why are those the prime factors of the number 371,736?

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 371,736

371,736
Factor Arrows
2185,868
Factor Arrows
292,934
Factor Arrows
246,467
Factor Arrows
315,489
Factor Arrows
35,163
Factor Arrows
31,721

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, 1721

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 1,721 = 371,736

This can also be written as 23 x 33 x 1,7211 = 371,736

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


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