Q: What are the prime factors of the number 511,666,000?

 A: 2, 5, 17, 101, 149

Why are those the prime factors of the number 511,666,000?

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 511,666,000

511,666,000
Factor Arrows
2255,833,000
Factor Arrows
2127,916,500
Factor Arrows
263,958,250
Factor Arrows
231,979,125
Factor Arrows
56,395,825
Factor Arrows
51,279,165
Factor Arrows
5255,833
Factor Arrows
1715,049
Factor Arrows
101149

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, 17, 101, 149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 5 x 17 x 101 x 149 = 511,666,000

This can also be written as 24 x 53 x 171 x 1011 x 1491 = 511,666,000

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


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