Q: What are the prime factors of the number 316,970?

 A: 2, 5, 29, 1093

Why are those the prime factors of the number 316,970?

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 316,970

316,970
Factor Arrows
2158,485
Factor Arrows
531,697
Factor Arrows
291,093

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, 5, 29, 1093

We can check our work by multiplying all of the prime factors together: 2 x 5 x 29 x 1,093 = 316,970

This can also be written as 21 x 51 x 291 x 1,0931 = 316,970

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


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