Q: What are the prime factors of the number 361,931?

 A: 19, 43, 443

Why are those the prime factors of the number 361,931?

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 361,931

361,931
Factor Arrows
1919,049
Factor Arrows
43443

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:

19, 43, 443

We can check our work by multiplying all of the prime factors together: 19 x 43 x 443 = 361,931

This can also be written as 191 x 431 x 4431 = 361,931

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


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