Q: What are the prime factors of the number 511,668?

 A: 2, 3, 61, 233

Why are those the prime factors of the number 511,668?

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 511,668

511,668
Factor Arrows
2255,834
Factor Arrows
2127,917
Factor Arrows
342,639
Factor Arrows
314,213
Factor Arrows
61233

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, 61, 233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 61 x 233 = 511,668

This can also be written as 22 x 32 x 611 x 2331 = 511,668

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


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