Q: What are the prime factors of the number 190,170?

 A: 2, 3, 5, 2113

Why are those the prime factors of the number 190,170?

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 190,170

190,170
Factor Arrows
295,085
Factor Arrows
331,695
Factor Arrows
310,565
Factor Arrows
52,113

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, 2113

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 2,113 = 190,170

This can also be written as 21 x 32 x 51 x 2,1131 = 190,170

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


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