Q: What are the prime factors of the number 392,381,357?

 A: 23, 41, 239, 1741

Why are those the prime factors of the number 392,381,357?

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 392,381,357

392,381,357
Factor Arrows
2317,060,059
Factor Arrows
41416,099
Factor Arrows
2391,741

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:

23, 41, 239, 1741

We can check our work by multiplying all of the prime factors together: 23 x 41 x 239 x 1,741 = 392,381,357

This can also be written as 231 x 411 x 2391 x 1,7411 = 392,381,357

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


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