Q: What are the prime factors of the number 191,775?

 A: 3, 5, 2557

Why are those the prime factors of the number 191,775?

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 191,775

191,775
Factor Arrows
363,925
Factor Arrows
512,785
Factor Arrows
52,557

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:

3, 5, 2557

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 2,557 = 191,775

This can also be written as 31 x 52 x 2,5571 = 191,775

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


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