Q: What are the prime factors of the number 256,206,000?

 A: 2, 3, 5, 42701

Why are those the prime factors of the number 256,206,000?

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 256,206,000

256,206,000
Factor Arrows
2128,103,000
Factor Arrows
264,051,500
Factor Arrows
232,025,750
Factor Arrows
216,012,875
Factor Arrows
35,337,625
Factor Arrows
51,067,525
Factor Arrows
5213,505
Factor Arrows
542,701

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, 42701

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 5 x 5 x 42,701 = 256,206,000

This can also be written as 24 x 31 x 53 x 42,7011 = 256,206,000

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


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