Q: What are the prime factors of the number 356,370?

 A: 2, 3, 5, 7, 1697

Why are those the prime factors of the number 356,370?

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 356,370

356,370
Factor Arrows
2178,185
Factor Arrows
359,395
Factor Arrows
511,879
Factor Arrows
71,697

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, 5, 7, 1697

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 1,697 = 356,370

This can also be written as 21 x 31 x 51 x 71 x 1,6971 = 356,370

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


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